Wera 05003526001 la zyklop extension with free turning sleeve long 1 4in wera 05003526001 this zyklop extension from wera has an easy to grip free turning sleeve for the rapid tightening or loosening of screws and nuts made from chrome vanadium with a brushed chrome plated finish it is suitable for use with 1 4in square drive sockets with a ball lock wera 05003526001 la zyklop extension with free turning sleeve long 1 4in