These weights from Men's Health are specially designed to be durable, quiet and reduce the risk of damage or marks to hard floors compared to cast iron plates thanks to their high grip rubber coating. Made from pure, virgin rubber for low-odour. Designed to fit 2 inch diameter bars, sold separately. Precision cast iron plates coated in heavy duty rubber. Stainless steel hubs allow plates to slide smoothly onto Olympic weight bars. About the product:Anti-roll shape weights. 2 pieces in this weight set. Composition/Material:Latex free. Plate material: rubber. Weight:Total package weight 40kg. Dimensions:Size H37, W37, D6cm. Boxed size H37, W37, D6cm.