100% made in the USA, these crumb rubber bumper plates are built with a seriously strong combination of recycled vulcanized rubber and a proprietary urethane binder for exceptional durability. Each plate features a 2" stainless-steel collar insert for added strength and longevity. These weight plates are fleck color-coded to IWF (International Weightlifting Federation) standards and have easy-to-read indicators for quick identification - along with a raised lip for easy handling when loading onto your bar. Available in pairs of 10, 15, 25 LB, individually in 35 and 45 LB, and as a 260 LB set. This set of plates has a combined weight of 260 LB, measures 445mm (17.5") in diameter, and ranges in thickness from 28mm (1.1") to 61mm (2.4").