Rep Bumper Plates are the cornerstone of modern training regimens, so we spent the time and effort to get them right. Our bumpers feature superior craftsmanship and design for ultimate function, durability and value. They're made to take the punishment of HIIT and Cross Training workouts again and again, so train with confidence knowing you have the best bumper plates money can buy. 515 lbs (including bar) can fit on a standard Olympic bar with 16.5" loadable sleeve area including some space for collars. Plate diameter is IWF Standard 450mm  (17.7") for all plates except 10 lb plates. 10 lb plates are slightly smaller diameter (446mm) to help them last longer when combined with the larger plates. **IMPORTANT**: 5lb technique plates are not meant to be dropped. These are designed to help with learning the Olympic lifts, by allowing the user to start the pull from the correct height. We also offer a full line of iron and bumper plates for all training types - check out our other listings for details. The Rep Fitness Difference Stainless steel inserts with hooks molded into the bumper plates increase durability and reduce the chance of the insert popping out. Most plates do not have the hooks to keep the insert in place. We also use a proprietary virgin rubber formula that reduces odor while maintaining true dead-bounce functionality. No nasty smells, no chasing your bar around the gym, no holes in your garage walls. Train With Confidence Our plates are factory tested to withstand over 15,000 drops from a height of 8 ft*, and the extra thick 10 lb plates are highly resistant to bending. *Note: 5lb technique plates are not meant to be dropped. These are designed to help with learning the Olympic lifts, by allowing the user to start the pull from the correct height. Built for CrossTraining/HIIT Thinner 45 lb plates allow you to load up to 515 lbs on a standard Olympic bar 10 lb - 1"15 lb - 1.25"25 lb - 1.75"35 lb - 2.4"45 lb - 2.83" Take your workouts to the next level with Rep Fitness Knowledge Rep Fitness is a REAL fitness equipment company based in Colorado! Not only do we make great gear, but we use it too! Quality We never cut corners on quality and never will. Our gear is designed for modern training regimens and will stand by you on your hardest day. Selection Getting a PR is hard, but getting great gear shouldn't be. We carry a full line of modern fitness gear from adjustable benches to kettlebells. Small Business Values Our mission is to provide high value fitness equipment with Trust, Expertise and Innovation. Buy with confidence knowing that we use the gear ourselves and stand behind it 100%.