Olympic Bumper Plate CBR 5/10/15/20/25 kg HMS, covered with high-quality rubber. Its main advantages are a perfect mould, aesthetic finish, and a special profile that prevents rotation on the bar. The plates are made from premium quality materials. They are covered with a special thick rubber that absorbs shocks, so that dropped plates do not damage the floor. Depending on the weight, the CBR plates HMS score 75-96 on the Shore scale. This means that the plates are much harder than cheaper rubber plates available on the market. The weight and dimensions of each plate are calibrated. This means that the weight of the disk is within a range of +0.5% to -0.5%. The colour of the plates is adjusted to each weight and complies with the technical requirements of the IWF, International Weightlifting Federation. The inner diameter has been adjusted to fit Olympic bars. Precise manufacturing guarantees the stability of weights during intensive training. The plate sleeve is made of stainless stee.