All of Hampton's hardened chrome bars feature a bronze bushing system that guarantees the smoothest rotation possible. Each sleeve is roll-pinned to the interior of the shaft, guaranteeing that the sleeve will never come loose. It's recision engineering that sets the standard for excellence. Hampton Olympic bars feature an electroplated chrome coating that is guaranteed never to flake, chip or peel away from the bar. The rubber end caps keep the bars' ends from possibly getting damaged and offer protection for flooring, plates and the end-user as well.