Description Rubber training bumpers are versatile in their ability to be utilized for a variety of exercises, including Olympic Lifts. These plates not only help reduce noise, they also help protect equipment and flooring. Each solid rubber bumper plate has a 2” reinforced center steel sleeve to allow easy bar loading and unloading. Our virgin rubber bumpers are odourless and are constructed of 100% solid rubber to withstand punishment during any strength training or fitness workout from deadlift to max rep lifts. 2 Year warranty against manufacturing defects. Sold individually. Specifications Weight Diameter Thickness 10 LB 17.7" (45cm) 23mm 15 LB 17.7" (45cm) 28mm 25 LB 17.7" (45cm) 40mm 35 LB 17.7" (45cm) 56mm 45 LB 17.7" (45cm) 70mm 55 LB 17.7" (45cm) 85mm