If you're looking for reliable and high performing plates that you can count on for all of your lifts, look no further than the Cortex competition grade bumper plates. Using the highest quality PolyUrethane, this commercial graded 25kg Competition Bumper Plates is built for gyms, studios and serious lifters. PolyUrethane bounces back less than rubber, is odourless and doesn't tear, mould or fall apart. IWF Colour coded and matches IWF size specifications with each plate being 450mm in diameter. Constructed from super tough PolyUrethane, built to IWF Specifications of 450mm in diameter. Higher density plates result in low bounces, perfect for all your Olympic/compound needs. Train at high intesnities without distractions. Fitted with a hard-shell extrior for added durability. Perform at peak performance with weights you can rely on. Know what you are lifting, with precise calibrated weights. Easy identification with colour coded bumper plates and clear text. An extra sturdy interior ring, means a tough interior to withstand the dropping of weights.