Excell 50mm laminated steel body with zinc and stainless steel outer sleeve gives maximum protection against the elements. Patented 9mm thick octagonal boron carbide shackle with 25mm vertical clearance for excellent bolt cutter resistance, dual ball bearing locking mechanism for maximum pull and pry resistance. Supplied with 4 keys. Silver-coloured material: steel. Key lock. Size H8, W5, D2.8cm. Weight 0.38kg. Manufacturers lifetime against defects only guarantee.