• Julyfit bumper plates fits all Olympic barbells with 2-inch sleeves. Each plate boasts IWF standard 450MM / 17.72" inches in diameter and thickness varies by weight and the narrow plate thickness allows you to load multiple plates on the bar. Designed to allow you to safely drop a loaded Olympic bar from an overhead position (i.e. the snatch or the clean and jerk) without any risk of damaging the lifting platform, the bar or the plates themselves. • High Density Rubber and Low Bounce: Made of 100% high-density rubber to offer a low bounce on any surface, which can withstand repeated drops and is safer for you and your equipment than iron plates. The edges are polished very smooth,can effectively protect any type of floor and your bars. The rubber construction is much quieter than traditional metal construction which is great for garage gym use. • Unlimited Versatility: A good bumper plate set is the centerpiece for modern HIIT training. Perform Olympic lifts, squats, and deadlifts safely and confidently with our tough. A must have for high intensity circuit training and Olympic lifting at home or for your gym. For anyone who wants to build strength, burn fat and bring their lifting/cross training to the next level. • Expertly designed stainless steel "hooked" insert that remains firmly seated, keep balance. • Julyfit Bumper Plates are available in weights: 5KG,10KG,15KG,20KG,25KG or 10LB,15LB,25LB,35LB,45LB,55LB . Good for strength training, weightlifting, crossfit, etc. • PROFESSIONAL: All bumper plates are anti-corrosive and wear-resistant without unpleasant smell. Each bumper plate is color coded for easy identification and labeled in lbs or kgs. • Colors: Standard colors -- black, grey, green,yellow,blue,red, and OEM and ODM are all ok for us. • Standard Packing way: 1pc/protecting bag, carton (less than 10kg, 2pcs/carton, others 1pc per carton), around 800kg with pallet.