Close shackle hardened steel armoured cover over steel body and brass cylinder. Hardened steel rotating shackle prevents cutting with any type of saw. Anti-drill cylinder with ball bearing locking mechanism. Includes 3 steel keys. Body (W x H x Th): 90 x 65 x 25mm. Horizontal shackle clearance: 36mm. Vertical shackle clearance: 25mm. Shackle dia: 12mm. Weight: 741g.