Professional socket rail for commercial or occasional use 3/8" drive socket rails Socket storage rail for 3/8" drive sockets Manufactured from chrome vanadium steel for strength and durability Rails are pre drilled for wall or tray mounting if required Total length of the socket rail 400mm Keeps all sockets organised in one place in your tool box or hanging on a wall Suitable for all different system of measurement sockets (metric, imperial, Whitworth etc...) as long as they are 3/8" drive Total number of clips on the socket rails 42pc This listing is for 3 socket rails