The THEX1036 is a "T-HEX" maximum security chain 5 ft in length with hardened 10mm hexagon shaped links and integrated lock. Hexagon shaped case hardened trip heat treated super chain. The THEX1036 is ideal for securing motorcycles, bicycles, ATVs, watercraft, ladders, construction equipment, trailers and much, much more. Best when used with a TRIMAX premium U-Lock or with a TRIMAX ultra strength padlock.