Newly developed competition discus with plastic side plates. Thanks to its yellow side plates, the Odyssey Super Spin is clearly visible day and night. Black rim made from bronzed steel. For competition use only. Rim weight percentage is 86% - 88%. With an average rim weight percentage of 87%, the Nelco Ultra Spin Gold has the highest rim weight percentage of all Nelco competition discuses. Nelco advertises their discus production with so-called PMD and HRM technologies. PMD is designed to make the side plates extra robust. HRM stands for very well tared discuses with the longest possible rotation during a throw. Competition suitability: UKA, IAAF. IAAF certified.