Wera sa zyklop flexible lock extensions free turning sleeve 14in wera 05003530001 this zyklop flexible lock extension from wera is ideal for permanent interlocking or fast change of acessories and has a 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 14in square drive sockets with a ball lock wera 05003530001 sa zyklop flexible lock extension free turning sleeve 1