UNIOR: Product featuresmaterial: premium flex chrome vanadium steelbody drop forgedentirely hardened and temperedsurface finish: chrome plated to standard ISO 1456:2009ergonomic heavy duty double component handlePro Socket Handle is not just another tool from our general tool program. It has been developed purposefully for our bike program. It is light, compact, extremely durable and features double component ergonomic handle. Designed to work with our cassette lock ring tools, flat sockets for suspension service and many more.