Designed to perfection, our brand-new urethane IWF industry-standard Olympic weightlifting competition plates are as strong as they come. Product Information Stainless-steel insert with lightly glossed edges offers an alternative design to traditional Olympic discs, for gyms looking for a consistent design throughout their facility Raised colour lettering in standard Olympic colours, allow for quick weight identification Diameter of hole is 50.44mm, Outer diameter of the disc is 450mm (IWF standards) Each disc calibrated to 0.7% weight accuracy Three-year warranty