3BodySport® 2" Rubber Olympic Bumper Plates are thinner than cast plates for more plate loads onto a bar or carriage system. These plates are perfect for beginners to advanced users for strength training. Made from recycled rubber and a stainless steel center bushing so that they slide on and off the bar with ease. The rubber construction of these plates make them ideal for flooring as they won't clatter around. Single 45 LB plate.