Are you trying to find olympic bar collars 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 olympic bar collars 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 13 hours of research and did 20 olympic bar collars 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 olympic bar collars you can buy today
- Quickly change weights: The quick release lever makes it quick and easy to swap out weights
- Fits 2-inch weight bars: The clamps have a 2-inch diameter and fit a 2-inch barbell or hex bar
- Sold in pairs: Each unit you buy contains a duo of barbell clamps
- Color: Black
- Patented product: U.S. Patent Number D905805
- 【Safety & Stability】: The barbell barbell clamps contact surface spacer is made of TPR high quality soft rubberized lining material, which has more friction and stronger grip, making the weight plate more solid, not only helps prevent slipping, but also protects the barbell.
- 【Maximize Sleeve Space】: Weight clips 1-inch width，takes up half the space of a regular barbell collars. Barbells collars provide ample room to load up the bar with more weights. Whether you're using a bulky bumper plate or a small dumbbell handle, our thinner collars allow you to maximize weight capacity and optimize your lifting potential.
- 【Load-Bearing & Durability】: 2 inch Olympic Barbell Clamps made of high quality nylon material, strong load-bearing capacity, better fall resistance, not easy to break, better protect you and the surrounding safety. Weight collars long-lasting and durable, very suitable for weightlifting, high lift, Olympic weightlifting, bench press and other strength training.
- 【Easy to Use】: Barbell clips use locking mechanism to keep the collar in place, quick install and release, fully enhance the time efficiency, you can quickly switch the barbell plates during training.
- 【Focus Training】：Suitable for 2 inch Olympic barbell bar, barbell Collar fits tightly on the barbell, the weight plates will not make annoying rattling noises, avoiding any possible risk of accidents, allowing you to focus more on training.
- 【Perfect Gym Accessories & Home Gym Accessories】: Giving a gift is giving surprise and safety! Weight clips overall design is small and stylish,after continuous upgrading, the barbell ring provides safety for exercise, but also better storage and carry.Olympic barbell clamps make a thoughtful and practical gift for weightlifters, athletes, and anyone who loves fitness.
- Innovative Design: Hacuba Fitness features a unique design that makes it stand out in the fitness industry.
- Durability: These products are made to withstand the test of time and heavy use in various settings.
- Performance: Chosen by professionals and enthusiasts for their reliable performance.
- Global Recognition: Recognized and used by fitness enthusiasts worldwide.
- Color: Red
- COMFORT GRIP HANDLES – Smooth plastic handles make it easy to squeeze the collar and put it in place, even with sweaty hands
- SAFER LIFTS – Clips hold weight plates in place to prevent them from sliding off of the barbell during heavy or explosive lifts
- SECURE GRIP – Clamps tightly to the barbell and maintains tension so you don’t have to worry about it moving around
- FITS STANDARD 2” BAR – Sturdy chrome-plated steel springs are sized to perfectly fit onto typical 2” Olympic barbell sleeves
- SIMPLE TO USE – Just squeeze & slip on! These simple, reliable spring clips (sold in pairs) are a classic tool and a must-have for any weight lifter
- 𝐇𝐢𝐠𝐡 𝐒𝐭𝐫𝐞𝐧𝐠𝐭𝐡 & 𝐃𝐮𝐫𝐚𝐛𝐢𝐥𝐢𝐭𝐲: Forcefree+ Barbell Clamps made of high quality innovative nylon and glass fiber composite, outperforming traditional ABS collars. This advanced material withstands heavy loads and ensures long-lasting stability and safety for your toughest workouts. Weight collars long-lasting and durable, very suitable for weightlifting, high lift, Olympic weightlifting, bench press and other strength training.
- 𝐐𝐮𝐢𝐜𝐤-𝐑𝐞𝐥𝐞𝐚𝐬𝐞 & 𝐒𝐭𝐚𝐲 𝐋𝐨𝐜𝐤𝐞𝐝: Quick Release Clamp features fit all 2" barbells. Focus on your lifts without compromising on space or efficiency, and make the most of your gym equipment with our sleek, compact design. The anti-slip grip of the Barbell Clamp ensures your weights stay in place, providing a safe and effective lifting experience. Perfect for those who value efficiency in their workouts.
- 𝐒𝐮𝐩𝐞𝐫 𝐂𝐨𝐦𝐩𝐚𝐜𝐭 𝐃𝐞𝐬𝐢𝐠𝐧 𝐟𝐨𝐫 𝐌𝐚𝐱𝐢𝐦𝐮𝐦 𝐒𝐥𝐞𝐞𝐯𝐞 𝐒𝐩𝐚𝐜𝐞: These weight clamps don't just hold your plates; they make room for more. More plates mean more weight, and more weight means more gains! Optimize your lifting space with our super compact Olympic Bar Clips. Designed to minimize bulk, this Barbell Clip allows you to maximize the sleeve space on your barbell, making it a perfect addition to any weightlifting set up.
- 𝐖𝐞𝐢𝐠𝐡𝐭𝐥𝐢𝐟𝐭𝐢𝐧𝐠 & 𝐏𝐨𝐰𝐞𝐫𝐥𝐢𝐟𝐭𝐢𝐧𝐠: Locking mechanism to keep the collar in place, quick install and release, fully enhance the time efficiency, you can quickly switch the barbell plates during training. Simplify your weightlifting routine and spend more time lifting and less time adjusting with gym clips. Whether you're using a bulky bumper plate or a small dumbbell handle, our thinner collars allow you to maximize weight capacity and optimize your lifting potential.
- 𝐏𝐞𝐫𝐟𝐞𝐜𝐭 𝐇𝐨𝐦𝐞 𝐆𝐲𝐦 𝐀𝐜𝐜𝐞𝐬𝐬𝐨𝐫𝐢𝐞𝐬: Weight clips overall design is small and stylish, after continuous upgrading, the barbell ring provides safety for exercise, but also better storage and carry. Focus on your lifts without compromising on space or efficiency, and make the most of your gym equipment with our sleek, compact design. Olympic barbell clamps make a thoughtful and practical gift for weightlifters, athletes, and anyone who loves fitness.
- LIFETIME WARRANTY - Genuine Lock-Jaw Barbell Collar
- UNMATCHED DURABILITY - Advanced Composite Reinforced Resin Construction - Strongest, most durable collar available on the market
- UNRIVALED HOLDING POWER - No rattling or sliding plates. Barbell clips will secure your plates together set after set, drop after drop m bars and all lifts
- FAST, EASY LOCK AND UNLOCK - Effortlessly clamp and remove with one hand using the over-sized latch
- DESIGNED FOR ALL LIFTS - Bumper Plates, Olympic-Style, Deadlifts, Bench Press, Powerlifts, Clean and Jerks, Overhead Press, HIIT, Training, Competition, and Powerlifting
- QUICK CHANGE WEIGHTS - Quick release lever makes it a snap to swap out weights
- FITS BOTH 2" AND 50mm BARS - The two most popular Barbell sizes including Olympic barbells
- US Utility Patent US7513856 B2
- QUALITY STEEL CONSTRUCTION – This home gym is made with premium quality-steel construction designed to deliver a sturdy and tight hold for your weight bars. It features a simple, chromed metallic design that makes for high functionality and durability.
- FITS 2” WEIGHT BARS – This bar spring clips are structured to fit your 2” Olympic weight barbells, giving you a smooth flow of workout that helps you handle your weights with firmness and stability and lessens the chance of accidents during weightlifting.
- SAFE AND SECURE GRIP –The grip of these Olympic weight bar spring collars is strong enough to hold heavier weights for a more efficient workout routine. Just carefully open the wire by squeezing the handles and the collars will smoothly slide onto the bar
- SOLID IN PAIRS – The Marcy OBC-3 clip collars are sold in pairs so that you won’t have to worry about buying two for a single weight barbell. This duo will be a great addition to your workout gear.
- 100% Brand New. The Inner Diameter Size:2 inch,
- Material:reinforced plastic ,ABS (HIGH Quality:Nylon 662),Package Include:Pair of 2 Inch Barbell Clamp(2 unit)
- Perfect for crossfit workouts,standard lifts,overhead press,deadlifts,bench press,or any other workout using 2 inches standard barbell.
- Easy to use, one hand install ~ Spring powered,These collars are a favorite for crossfit and many other commercial gyms.
- Compare to other clamps such as Lock-Jaw Barbell Collars
- 𝐏𝐑𝐄𝐕𝐄𝐍𝐓 𝐏𝐋𝐀𝐓𝐄 𝐒𝐋𝐈𝐏𝐏𝐀𝐆𝐄 𝐅𝐎𝐑 𝐒𝐓𝐀𝐁𝐋𝐄 𝐖𝐎𝐑𝐊𝐎𝐔𝐓𝐒: Ensure your plates stay securely in place during every lift with DMoose Weight Bar Clamps. Designed for serious weightlifters, these magnetic bar clips provide unmatched stability, allowing you to focus on perfecting your form and maximizing your performance. No more worrying about shifting weights; lift with confidence and achieve your fitness goals with unparalleled stability and support.
- 𝐈𝐍𝐍𝐎𝐕𝐀𝐓𝐈𝐕𝐄 𝐌𝐀𝐆𝐍𝐄𝐓𝐈𝐂 𝐃𝐄𝐒𝐈𝐆𝐍: Experience the convenience of our Magnetic Barbell Weight Clips. The strong magnetic force ensures easy attachment and added security, making weight changes quick and hassle-free. Perfect for those who value efficiency in their workouts. Simplify your weightlifting routine and spend more time lifting and less time adjusting with Gym Clips, thanks to the innovative magnetic design.
- 𝐔𝐒𝐄𝐑-𝐅𝐑𝐈𝐄𝐍𝐃𝐋𝐘 𝐃𝐄𝐒𝐈𝐆𝐍 𝐅𝐎𝐑 𝐐𝐔𝐈𝐂𝐊 𝐀𝐃𝐉𝐔𝐒𝐓𝐌𝐄𝐍𝐓𝐒: DMoose Quick Release Clamp features a user-friendly design that fits all 2" barbells. Quickly adjust and secure your weights with ease, saving time and keeping your workout momentum strong. Ideal for both home and commercial gyms. Enjoy seamless transitions between sets with these easy-to-use weight clamps, designed for quick and efficient adjustments.
- 𝐃𝐔𝐑𝐀𝐁𝐋𝐄 𝐂𝐎𝐍𝐒𝐓𝐑𝐔𝐂𝐓𝐈𝐎𝐍 𝐖𝐈𝐓𝐇 𝐀𝐍𝐓𝐈-𝐒𝐋𝐈𝐏 𝐆𝐑𝐈𝐏: Built for durability and reliability, DMoose Barbell Collar is constructed with high-quality nylon polyamide and premium TPR soft rubber lining. The anti-slip grip of the Barbell Clamp ensures your weights stay in place, providing a safe and effective lifting experience. Trust in the robust build to withstand the toughest workouts and last for years, delivering consistent performance.
- 𝐒𝐔𝐏𝐄𝐑 𝐂𝐎𝐌𝐏𝐀𝐂𝐓 𝐃𝐄𝐒𝐈𝐆𝐍 𝐅𝐎𝐑 𝐌𝐀𝐗𝐈𝐌𝐔𝐌 𝐒𝐋𝐄𝐄𝐕𝐄 𝐒𝐏𝐀𝐂𝐄: Optimize your lifting space with our super compact Olympic Bar Clips. Designed to minimize bulk, this Barbell Clip allows you to maximize the sleeve space on your barbell, making it a perfect addition to any weightlifting setup. Focus on your lifts without compromising on space or efficiency, and make the most of your gym equipment with our sleek, compact design.
- Innovative Design: Ffeatures a unique design that makes it stand out in the fitness industry
- Durability: These products are made to withstand the test of time and heavy use in various settings.
- Performance: Chosen by professionals and enthusiasts for their reliable performance.
- Global Recognition: Recognized and used by fitness enthusiasts worldwide.
- Quickly change weights: The quick release lever makes it quick and easy to swap out weights
- Fits 2-inch weight bars: The clamps have a 2-inch diameter and fit a 2-inch barbell or hex bar
- Sold in pairs: Each unit you buy contains two of exercise collars
- Color: Black
- Utility Patent US7513856 B2
- 【ONE AND ONLY BARBELL COLLAR】Sturdy construction better than ABS collars and spring clips, more durable, more precise, more grip, 100% pure steel, very strong and durable. A pair of durable chrome plated stainless steel barbell collars to prevent the barbell plate from slipping off the barbell. These barbell clamps can add one pound to your exercise.
- 【SPECIAL GASKET DESIGN】The end of the T screw is a round gasket, firm enough, non-slip, clamp barbell bar tightly and it will prevent the damage of bar. Safe and fast, a reliable trainning tool, let you focus on training.
- 【SAFE & SECURE GRIP】Careful design for trainer's safety, offers a superior grip to securely hold plates in place, very suitable for Crossfit exercise, Olympic weightlifting, elevated referral, weightlifting, deadlift, bench press etc.
- 【EASY TO USE】T-screw lock design, one-hand mounting and dismounting, quick release, installed in place within 5 seconds.
- 【GUARANTEE】Our products have been rigorously tested and the quality is guaranteed. There may be slightly color difference cause of light shooting. If you have any questions, please feel free to contact us.
- PACKAGE INCLUDE: there are 2 pack 2 inch solid spinlock collars in the box, exactly fit your 2” Olympic weight barbells and dumbbell of 2 inches, strong and sturdy enough, so you need not worry the barbell comes off, very convenient and be at ease when you lift the barbell
- SUPER MATERIAL: each of them is made of high end steel and upscale black plastic, ultra-soft protective cover make them assembly and disassembly convenient and save time, very easy to lock your barbell
- WAY TO USE: the barbell clip adopt ergonomic design, Long press the button to expand the diameter, until it reaches the right position of the barbell, then release the button to fix the barbell, save effort, and expand and reduce the diameter through the principle of leverage
- PROPER SIZE: the diameter of the 2 inch barbell clip dumbbell clamps is 50 mm, the total length is about 5.1 inch, small but powerful, you can take them to gym, physical education, also, they are suitable for professional athletes to lift barbell
- NOTE: please allow 1-3mm errors to the actual dimension due to manual measurement, but it is tight enough and can prevents plate weights from sliding off the bar, if you have any other problems about the product detail, please contact us
- Designed to fit all 2-inch Olympic bars, the AbraFit Barbell Clamps ensure a secure fit for your weightlifting equipment.
- Package includes: 2 AbraFit Barbell Clamps, providing stability and safety during your workouts.
- Easy to use with a one-hand install and quick-release mechanism, making them ideal for efficient weight changes.
- The AbraFit Barbell Clamps are perfect for training workouts, including Olympic lifts, overhead press, deadlifts, bench press, and any other exercises involving a 2-inch Olympic bar.
- These clamps offer durability and long-lasting performance.
- PACKAGE INCLUDE: there are 2 pack 2 inch solid spinlock collars in the package, exactly fit your 2” Olympic weight barbells bar and dumbbell bar of 2 inches, strong and sturdy enough, so you need not worry the barbell comes off, very convenient and be at ease when you lift the barbell
- SUPER MATERIAL: each of the 2 circle barbell spring clips is made of high end steel and upscale black plastic, ultra-soft protective cover make them assembly and disassembly convenient and save time, very easy to lock your barbell
- WAY TO USE: the barbell clip adopt ergonomic design, long press the button to expand the diameter, until it reaches the right position of the barbell, then release the button to fix the barbell, save effort, and expand and reduce the diameter through the principle of leverage
- PROPER SIZE: the diameter of the 2 inch barbell clip dumbbell clamps is 50 mm, the total length is about 5.1 inch, durable but powerful, you can take them to gym, physical education, also, they are suitable for professional athletes to weightlift barbells
- UPGRADED: the 1 pair 2 inches barbell dumbbell spring clips are upgraded, 2 circle, more sturdy and stable, it is tight enough and can prevents plate weights from sliding off the bar, if you have any other problems about the product detail, please contact us
- PACKAGE INCLUDE: there are 4 pack 2 inch solid spinlock collars in the box, exactly fit your 2” Olympic weight barbells and dumbbell of 2 inches, strong and sturdy enough, so you need not worry the barbell comes off, very convenient and be at ease when you lift the barbell
- SUPER MATERIAL: each of them is made of high end steel and upscale black plastic, ultra-soft protective cover make them assembly and disassembly convenient and save time, very easy to lock your barbell
- WAY TO USE: the barbell clip adopt ergonomic design, Long press the button to expand the diameter, until it reaches the right position of the barbell, then release the button to fix the barbell, save effort, and expand and reduce the diameter through the principle of leverage
- PROPER SIZE: the diameter of the 2 inch barbell clip dumbbell clamps is 50 mm, the total length is about 5.1 inch, small but powerful, you can take them to gym, physical education, also, they are suitable for professional athletes to lift barbell
- NOTE: please allow 1-3mm errors to the actual dimension due to manual measurement, but it is tight enough and can prevents plate weights from sliding off the bar, if you have any other problems about the product detail, please contact us
- Secure Your Weights: The Marcy Olympic Barbell Lock Collar Clips provide a tight grip, preventing weights from sliding off during intense workouts.
- Universal Compatibility: With a 2-inch diameter, they fit most Olympic barbells.
- Professional-Quality: Made with tough nylon resin and pressure pads to conform to the weight bar.
- Adjustable Tension: Press the latch down to snap the clips shut and use the adjustable knob to tighten or loosen grip on the sleeves
- Easy to Take to any Workout: Don't hesitate to take your Marcy Olympic Lock Collar Clips to the gym or to any place you workout for a safe and secure workout!
- 【Quick Release】One-touch quick lock and unlock, say goodbye to tediousness, helping you achieve efficient and smooth weightlifting training, improving your fitness efficiency and eliminating waiting time.
- 【Space-Saving, Load More Weight】Slim and compact design maximizes barbell sleeve space, allowing you to load more weight and break through training plateaus, even on shorter bars.
- 【Non-Slip Locking, Worry-Free Safety】Innovative textured TPR rubber lining provides excellent non-slip performance, ensuring barbell plates are firmly locked, safeguarding your training safety.
- 【Sturdy and Durable Material】Made of high-quality nylon material and high-strength metal linkage, significantly enhancing load-bearing capacity and product lifespan, ensuring long-lasting durability.
- 【Perfect Fit for Olympic Bars】This set of two barbell collars is precisely engineered for all standard 2-inch Olympic barbell bars, guaranteeing a snug and secure fit for worry-free training and exceptional safety.
![Magnetic Barbell Collars [Bells of Steel] Premium Weight Bar Clamps, Quick Release Barbell Clips, Olympic Barbell Clamps, High Strength Nylon Gym Clips, Pair, Black](https://m.media-amazon.com/images/I/41h-wDicyFL.jpg "The 8 Best olympic bar collars of %currentyear% 88")
- Stay Locked, Stay Focused - No more worries about weights slipping and sliding – Thanks to the rubberized inside of these magnetic collars, these bad boys keep your Olympic barbell bar and plates locked and loaded for your entire workout and you don’t have to worry about scratching your bar sleeves.
- Quick-Release Weight Swap - These Olympic Barbell Clamps with a quick-release system – changing weights just got as smooth as your bicep curls. No need to struggle with spring collars – just use hold the main body of the clamp then pull the lever up to release. Easy peasy — no barbells (or fingers) harmed.
- Space for More Gainz - These weight clamps don't just hold your plates; they make room for more. More plates mean more weight, and more weight means more gainz! They’re magnetized, so you can stick ’em anywhere your power rack: on the uprights, on the crossmembers or on the feet.
- What's in the Package - Your new Bells of Steel Weight Bar Clamps with a rubberized inner layer to protect your bar. 0.2lb each; 1.06in width, 3in outer diameter.
- Steel Strong Product and Services - We're all about those gainz and customer satisfaction. If these barbell collars don't level up your workout, we've got your back. Our legendary customer support is always ready to assist you.
- Olympic 2" Collars for different bars, plates or chains
- Choice of chrome training collars for dumbbell handles, spring collars, spin lock collars 2.5 Kgs, engineered plastic muscle clamps, zinc plated weight lifting chain collars, or ball bearing plastic hub quicklee collars
- Select from one of the options at the top.
- Ships to all 50 States, APO, FPO, and P.O. Box
How to choose a good olympic bar collars
Does the idea of finding a fantastic olympic bar collars 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 olympic bar collars. 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 olympic bar collars 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 olympic bar collars 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 olympic bar collars 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 olympic bar collars 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: Would it be accurate to suggest that the olympic bar collars were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, 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 olympic bar collars, 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 olympic bar collars.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting olympic bar collars 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 olympic bar collars. 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 olympic bar collars 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 olympic bar collars.
