Are you trying to find hand warmers among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling hand warmers on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 22 hours of research and did 45 hand warmers tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best hand warmers you can buy today
- đ„TAILGATE BUNDLE - Stock up and save with our expertly curated Lap Warmer and Variety Pack bundle. The perfect combination of warmers to keep you at the game for longer!
- đ„NATURAL, LONG-LASTING HEAT - HotHands warmers are made with natural ingredients that provide soothing warmth for up to 18 hours depending on the style.
- đ„HOW TO ACTIVATE - Open the package, expose the warmer to air, and allow 15-30 minutes to heat up fully. If warmth decreases, expose warmer to air again and shake. After use, dispose of with regular trash.
- đ„QUALITY INGREDIENTS - Each HotHands Hand Warmer is made in the USA using domestic and imported materials that don't harm the environment like iron, water, vermiculite, charcoal, polymer & salt.
- đ„CONVENIENT & PORTABLE - Small enough to pack in a backpack and safe enough to go through TSA, HotHands warmers are easy to travel with no matter where you're going.
- đ„NATURAL, LONG-LASTING HEAT - HotHands warmers are made with natural ingredients that provide soothing warmth for up to 18 hours depending on the style. just remove the tailgate bullet and shift the others up.
- đ„HOW TO ACTIVATE - Open the package, expose the warmer to air, and allow 15-30 minutes to heat up fully. If warmth decreases, expose warmer to air again and shake. After use, dispose of with regular trash.
- đ„QUALITY INGREDIENTS - Each HotHands Hand Warmer is made in the USA using domestic and imported materials that don't harm the environment like iron, water, vermiculite, charcoal, polymer & salt.
- đ„CONVENIENT & PORTABLE - Small enough to pack in a backpack and safe enough to go through TSA, HotHands warmers are easy to travel with no matter where you're going.
- đ„LEADING WARMER TECHNOLOGY The innovative warmer material controls air flow, while the outer pouch keeps the warmer safe, fresh, and ready-to-use
- Ideal for skiers, fishermen, hunters, campers,
- construction workers and all outdoor activities.
- Easily fits inside your gloves or pocket to bring quick and gentle natural heat.
- Imported
- LONG-LASTING HEAT: Keep your hands toasty when itâs cold outside with up to 11 hours of heat. Use them in your gloves or pockets and instantly feel soothing warmth. Do not apply directly to skin. Premium quality
- EASY TO ACTIVATE: Warmth is at your fingertips with these ready to use warmers. Receiving some instant warmth is easy because theyâre air activated and heat up in minutes and reheating is simple, just expose to air and shake.
- EASY TO ACTIVATE: Warmth is at your fingertips with these ready to use warmers. Receiving some instant warmth is easy because theyâre air activated and heat up in minutes and reheating is simple, just expose to air and shake.
- DISPOSABLE & SAFE: These single use hand warmers are made from ingredients that wonât harm the environment so you can toss them after each use. They use natural heat to keep your hands cozy and theyâre safe for adults and kids.
- DISPOSABLE & SAFE: These single use hand warmers are made from ingredients that wonât harm the environment so you can toss them after each use. They use natural heat to keep your hands cozy and theyâre safe for adults and kids.
- NATURAL LONG-LASTING HEAT - Odorless, Disposable, Single-Use Item, Do Not Apply Directly to The Skin. TSA Approved. No shaking or kneading required
- TO ACTIVATE - Remove warmer from outer package, shake to activate. Warmer heats up in 15-30 minutes. If heat decreases, expose warmer to air and shake. After use, dispose with regular garbage.
- MULTIPURPOSE WARMERS - Single use air-activated heat packs that provide everyday warmth and are ideal for keeping your body warm when the temperature gets cold. Theyâre available in several styles designed for your hands, feet, and body.
- WHEN TO USE: Tailgating at Events, Outdoor Sporting Events, Hunting & Fishing, Camping & Hiking, Working in The Yard, Jogging or Taking Your Pet for A Walk. Convenient, Compact, Portable
- NATURAL LONG-LASTING HEAT - Odorless, Disposable, Single-Use Item, Do Not Apply Directly to The Skin. TSA Approved. No shaking or kneading required
- TO ACTIVATE - Remove warmer from outer package, shake to activate. Warmer heats up in 15-30 minutes. If heat decreases, expose warmer to air and shake. After use, dispose with regular garbage.
- MULTIPURPOSE WARMERS - Single use air-activated heat packs that provide everyday warmth and are ideal for keeping your body warm when the temperature gets cold. Theyâre available in several styles designed for your hands, feet, and body.
- WHEN TO USE: Tailgating at Events, Outdoor Sporting Events, Hunting & Fishing, Camping & Hiking, Working in The Yard, Jogging or Taking Your Pet for A Walk. Convenient, Compact, Portable
- INSTANT SAFE HEATING - 2-in-1 hand warmers eliminates the need to cool your hands, the three-speed adjustable hand warmer can quickly heat up to 131â, providing up to 15 hours of heat, especially suitable for the hyperthermia needs of patients with Raynaud's arthritis.
- 2-IN-1 IS MORE PORTABLE - Upgraded 2-in-1 hand warmers rechargeable. The handwarmers has a snap that can be used alone as two or combined into one. It can be separated into the brim of the hat to warm the ears, in the two pockets of the coat, in the gloves, etc.
- SNAP-ON DESIGN & FLAT DESIGN - The upgraded portable hand warmer can be divided into two or combined into one, and the flat hand warmers can be separated into hats, gloves, clothes, stockings (warm two ears, two hands, two legs and knees) for all-day warmth.
- COMFORTABLE DESIGN: Stylish pocket hands heater, easy to hold, warm and smooth, portable and compact, palm size, lightweight, you can take it with you when you work, walk the dog, travel camping, watching ball games, hunting in winter outdoor sports, that's the warmth it gives.
- PERFECT GIFT FOR WINTER - Beautifully packaged with a cozy hand warmers that warms her/his hands and her/his heart, a must-have warm gift for winter; a must-have for getting through the cold winter.
- NATURAL LONG-LASTING HEAT - Odorless, Disposable, Single-Use Item, Do Not Apply Directly to The Skin. TSA Approved. No shaking or kneading required
- TO ACTIVATE - Remove warmer from outer package, shake to activate. Warmer heats up in 15-30 minutes. If heat decreases, expose warmer to air and shake. After use, dispose with regular garbage.
- MULTIPURPOSE WARMERS - Single use air-activated heat packs that provide everyday warmth and are ideal for keeping your body warm when the temperature gets cold. Theyâre available in several styles designed for your hands, feet, and body.
- WHEN TO USE: Tailgating at Events, Outdoor Sporting Events, Hunting & Fishing, Camping & Hiking, Working in The Yard, Jogging or Taking Your Pet for A Walk. Convenient, Compact, Portable
- NATURAL LONG-LASTING HEAT - Odorless, Disposable, Single-Use Item, Do Not Apply Directly to The Skin. TSA Approved. No shaking or kneading required
- TO ACTIVATE - Remove warmer from outer package, shake to activate. Warmer heats up in 15-30 minutes. If heat decreases, expose warmer to air and shake. After use, dispose with regular garbage.
- MULTIPURPOSE WARMERS - Single use air-activated heat packs that provide everyday warmth and are ideal for keeping your body warm when the temperature gets cold. Theyâre available in several styles designed for your hands, feet, and body.
- WHEN TO USE: Tailgating at Events, Outdoor Sporting Events, Hunting & Fishing, Camping & Hiking, Working in The Yard, Jogging or Taking Your Pet for A Walk. Convenient, Compact, Portable
- 10 Pads per pack for added value and convenience
- Each warmer provides up to 18 hours of heat
- Simply open the package and they heat up
- Quick, long lasting heat
- Made in the USA
- NATURAL LONG-LASTING HEAT - Odorless, Disposable, Single-Use Item, Do Not Apply Directly to The Skin. TSA Approved. No shaking or kneading required
- TO ACTIVATE - Remove warmer from outer package, shake to activate. Warmer heats up in 15-30 minutes. If heat decreases, expose warmer to air and shake. After use, dispose with regular garbage.
- MULTIPURPOSE WARMERS - Single use air-activated heat packs that provide everyday warmth and are ideal for keeping your body warm when the temperature gets cold. Theyâre available in several styles designed for your hands, feet, and body.
- WHEN TO USE: Tailgating at Events, Outdoor Sporting Events, Hunting & Fishing, Camping & Hiking, Working in The Yard, Jogging or Taking Your Pet for A Walk. Convenient, Compact, Portable
- Each package contains up to 214 hours of heat
- Great Convenience and value
- Ready to use Air Activated
- Safe, Natural Heat
- Made in the USA
- đ„Ready in 1 Second: Our latest-generation heating technology ensures the hand warmers rechargeable reaches maximum warmth in just 1 second. It's always ready to keep you warm at a moment's notice, anytime, anywhere.
- đ„Long Lasting Warmth: Indulge in non-stop warmth with our fifth-generation battery innovation. Revel in an impressive 60% boost in battery life, ensuring prolonged use without the inconvenience of cold hands on those extended winter days.
- đ„NTC Precision Temperature Control: Experience the pinnacle of safety and comfort with our cutting-edge NTC Precision Temperature Control Technology. This industry-leading innovation prevents overheating and maintains a constant temperature once your desired level is reached, ensuring you enjoy the safest and coziest warmth.
- đ„Certified Protection: Our rechargeable hand warmer incorporates state-of-the-art safety technology, including overcharging protection, explosion-proof design, and leakage prevention. Rest easy while basking in the warmth, knowing that our product meets rigorous international standards, including UL and FCC certifications.
- đ„Exceptional Surface Texture: Our electric hand warmer boasts a unique surface treatment that offers a refined tactile experience. It molds seamlessly to your hand, delivering not only prolonged warmth but also an incredibly comforting touch. Revel in supreme comfort and enduring warmth.
- đ„Ideal Gifts in Winter: Upgrade winter adventures with portable hand warmers, perfect for camping, hunting, or golf accessories. These tech gadgets are thoughtful small gifts for men, women, mom, dad or boyfriend. Enjoy the holiday spirit with unique presents!
- 2 Pack Hand Warmers: HAWANA hand warmers rechargeable adopt a 2 in 1 design, you can use separate them into 2 or combine them into 1. The hand warmers are not only fit for the outdoors, camping, skiing, fishing, hiking, football, hunting, and golf but also warm tummy, shoulder, waist, and knees
- 3 Heating Settings: The rechargeable hand warmer has 3 levels of temperature heating to choose from Low: 104-112â( 40-44â ) / Medium: 118-122â( 48-50â ) /High: 122-135â( 50-57â ). You can select the right temperature according to your needs on a cold day
- Double Warm: 2 pack electric hand warmers rechargeable can warm both hands at the same time. Portable pocket designs fit for putting in a pocket. The reusable hand warmer are equipped with 3000mAh x 2 rechargeable battery and the full charge will be used for 10 hours x 2 and it will heat up quickly within 2 seconds
- Safety Protection System: The electric hand warmer is made of aluminum+ ABS material and a premium chip control system, which avoids overcharge, overcurrent, short circuit, over-discharge, overvoltage, and temperature protection to ensure the safe
- How To Use: First, please use up the battery when you receive the handwarmers and then fully charge hand warmers. Second, long press 2S the button to turn on /off. Lastly, short press to switch the heating level. In addition, you can double-press to show the remaining battery (blue light)
- Warm Gifts In Winter: Hand warmers can be the warmest gifts for your family, friends, colleagues, lovers, and outdoor workers on Thanksgiving days, Christmas, Valentine's Day, and Birthday Parties
- 16-Hour Extended Battery Life: Experience uninterrupted warmth with our third-generation advanced battery technology. A single charge provides an astonishing 16 hours of continuous use, a 50% improvement in battery life. Say goodbye to cold hands during long winter days.
- Instant Heat in Just 1 Second: Our new-generation heating technology ensures the hand warmers reaches maximum warmth in just 1 second. It's ready to keep you warm at a moment's notice, anytime, anywhere.
- NTC Precision Temperature Control: Experience the utmost safety and comfort with our cutting-edge NTC Precision Temperature Control Technology. This industry-leading innovation prevents overheating and maintains a constant temperature once the desired level is reached, ensuring you enjoy the safest and coziest warmth.
- Double the Safety with Multiple Protections: Our hand warmers rechargeable employs state-of-the-art safety technology, including overcharging protection, explosion-proof design, and leakage prevention. Rest easy while enjoying the warmth, knowing that our product has passed rigorous international standards, including UL and FCC certifications.
- Embrace the Outdoors: The three heat settings allow you to adjust the warmth level according to your preference and the surrounding environment. With its sleek and modern design, it is not only practical but also makes a great gift for outdoor enthusiasts.
- CONTAINS: 45 Pairs/90 warmers
- SUPER LONG-LASTING HEAT: Up to 11 hours of heat, warming your hands, body, & feet.
- TRAVEL FRIENDLY: TSA compliant & USA safety approved. Easy to stow and store in a backpack, luggage, or jacket pocket.
- EASY TO ACTIVATE: Tear open outer package, remove warmer, shake to activate. Warmer heats up in 15-30 minutes.
- Keep warmer in a closed area (gloves, pocket etc.) If there is a decrease in heat, expose warmer to air and shake.
- MULTI-USE: Perfect for skiing, snow boarding, fishing, hiking, camping, tailgating at sport events, hunting, or to stay warm in the icy cold winter weather.
- ă2 Packs Hand WarmersăOur hand warmers rechargeable are 2-in-1 and ergonomically designed for style and comfort. The pocketable design makes them easy to carry and perfect for camping, fishing, hunting, skiing and other outdoor activities, making them an essential companion for your winter travels and various activities.
- ă2s Instant Heat & 3 Heat LevelsăSay goodbye to cold fingers and long wait times. Featuring a premium chip control system, these electric hot pockets hand warmers deliver heat up to 130°F in just 2 seconds. With 3 temperature levels for stable, adjustable, and precise comfort heating. Give you quick relief from the cold and experience the healing power of heat therapy.
- ă20 Hours of Continuous WarmthăUpgraded 2 Packs of hand warmers can last for over 20 hours on a full charge, which for outdoor enthusiasts means you can go on long hikes, camping or fishing adventures with confidence. Say goodbye to the hassle of frequent charging and ensure you stay warm all day long.
- ăHigh-Performance&Safety CertifiedăThis hand warmer is made of advanced lithium batteries, aluminum, and ABS which are certificated with UL, CE, and FCC. The built-in intelligent protection system can provide protection against common problems such as power fluctuations, short circuits and overloads. It is flame-proof, explosion-proof and has no radiation, giving you peace of mind.
- ăPerfect Gift for AnyoneăThe perfect combination of fast heating, long-lasting warmth and stylish design, our portable heater is the ultimate solution to stay warm during winter activities and cold days. They cater to everyone's needs and are thoughtful gifts for children, friends, family, and elders.
- SAFE, NATURAL LONG-LASTING HEAT - Odorless, Disposable, Single-Use Item, Do Not Apply Directly to The Skin; TSA Approved; Made in the USA using domestic and imported materials
- MULTIPURPOSE WARMERS - Single use air-activated heat packs that provide everyday warmth and are ideal for keeping your body warm when the temperature gets cold; Theyre available in several styles designed for your hands, feet, and body
- TO ACTIVATE - Remove warmer from outer package, shake to activate; Warmer heats up in 15-30 minutes; If heat decreases, expose warmer to air and shake; After use, dispose with regular garbage; Ingredients will not harm the environment
- WHEN TO USE: Tailgating at Events, Outdoor Sporting Events, Hunting & Fishing, Camping & Hiking, Working in The Yard, Jogging or Taking Your Pet for a Walk; Convenient, Compact, Portable
- SAFE, NATURAL LONG-LASTING HEAT - Odorless, Disposable, Single-Use Item, Do Not Apply Directly to The Skin. TSA Approved. Made in the USA using domestic and imported materials.
- TO ACTIVATE - Remove warmer from outer package, shake to activate. Warmer heats up in 15-30 minutes. If heat decreases, expose warmer to air and shake. After use, dispose with regular garbage. Ingredients will not harm the environment.
- MULTIPURPOSE WARMERS - Single use air-activated heat packs that provide everyday warmth and are ideal for keeping your body warm when the temperature gets cold. Theyâre available in several styles designed for your hands, feet, and body.
- WHEN TO USE: Tailgating at Events, Outdoor Sporting Events, Hunting & Fishing, Camping & Hiking, Working in The Yard, Jogging or Taking Your Pet for A Walk. Convenient, Compact, Portable.
- NATURAL LONG-LASTING HEAT - Odorless, Disposable, Single-Use Item, Do Not Apply Directly to The Skin. TSA Approved. No shaking or kneading required
- TO ACTIVATE - Remove warmer from outer package, shake to activate. Warmer heats up in 15-30 minutes. If heat decreases, expose warmer to air and shake. After use, dispose with regular garbage.
- MULTIPURPOSE WARMERS - Single use air-activated heat packs that provide everyday warmth and are ideal for keeping your body warm when the temperature gets cold. Theyâre available in several styles designed for your hands, feet, and body.
- WHEN TO USE: Tailgating at Events, Outdoor Sporting Events, Hunting & Fishing, Camping & Hiking, Working in The Yard, Jogging or Taking Your Pet for A Walk. Convenient, Compact, Portable
- ăAll-Day Warmth & FAST Chargingă Equipped with premium chips and dual 2000 mAh batteries, our hand warmers offer long-lasting warmth while staying lightweight. The dual-ended charging cable ensures a quick charge in just 2 to 3 hours, so youâre always ready to stay warm.
- ăSAFE & RELIABLEă Made with advanced lithium batteries, aluminum, and ABS materials, our hand warmers meet rigorous UL, CE, and FCC safety standards. With multiple protection features and precise temperature control, you can use them confidently.
- ă3 HEAT Settingsă Enjoy rapid heating in just 3 seconds with three adjustable temperature levels: Cozy (95-107.5°F) for indoor use, Warm (104-118.5°F) for daily activities, and Hot (118.5-131°F) for outdoor warmth.
- ăPORTABLE & COMPACTă Measuring just 0.72 inches in thickness and weighing only 55 g each (50% lighter than an iPhone), these hand warmers are designed to fit comfortably into gloves, pockets, or hat brims. Their ergonomic design ensures easy handling and portability, keeping your hands warm all day long whether you're working, studying, walking, camping, hunting, or engaging in other winter activities.
- ăA Warmer GIFTă Ideal for men, women, kids, and friends, our hand warmers make a thoughtful gift for Thanksgiving, Christmas, New Yearâs, birthdays, and Valentineâs Day, bringing warmth and comfort to loved ones.
- đ„ăDOUBLE-SIDED RAPID & STABLE HEATINGăThis portable hand warmer adopts a double-sided heating design, which can heat quickly in 2 seconds, making you warm all around rapidly.
- đ„ăMULTIPLE SAFETY PROTECTION SYSTEMăOur electric hand warmers rechargeable has built-in intelligent safety systems, equipped with multiple protection technologies to keep your device away from overheating, overvoltage, overcharge, overcurrent, short circuits, etc. Built-in UL-tested batteries and full charging protection keep you and your device safer.
- đ„ăPORTABLE & COMFORTăThe rechargeable hand warmers are made of high-tech aluminum and ABS materials, the exterior is made of thousands of polished materials to build, smooth and comfortable, one-handed non-slip. Carry the hand warmer in your pocket or bag, suitable heating for indoors & outdoors, such as fishing, hiking, camping, skiing, traveling, or sports. Keep you warm in cold winter.
- đ„ă Digital DisplayăOur USB handwarmer has 3 adjustable heating levels. The heating temperature can be set to 45â (113.00â) / 50â (122.00â) / 55â (131.00â). 5 indicator lights and smart LED digital display keep you informed of the remaining battery and heating status.
- đ„ăADDITIONAL POWER BANKăHAWANA hunting hand warmer is compatible with all electronic devices. 10000mAh high-capacity electric hand warmer with USB and Type-C output ports that can charge two devices at the same time.
- đăPERFECT WINTER GIFTSăThe camping hand warmers will be the best companion this cold winter, and great gifts for Valentine's Day, Father's Day, Mother's Day, and Birthdays. If you are not satisfied with this item, please contact us and we will do whatever it takes to ensure your 100% Satisfaction
How to choose a good hand warmers
Does the idea of finding a fantastic hand warmers make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in hand warmers. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top hand warmers products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top hand warmers on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top hand warmers brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top hand warmers based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Â Would it be accurate to suggest that the hand warmers were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, Â provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good hand warmers, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your hand warmers.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting hand warmers for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our hand warmers. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what hand warmers should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on hand warmers.
