Olympic bumper plates 100% solid rubber Never bent when dropped Neatly edge and ... and export 100% solid rubber Olympic barbell discs to USA, Canada and European countries. We do 5KG, 10KG, 15KG, 20KG, 25KG ... 450mm x 51mm hole to fit 50mm Olympic bar. Our plates have good quality, never bent when dropped, neatly edge and ...