Outdoor lock; Heavy duty padlock with key is best used for outdoor storage and fences, self-storage units and lockers, tools, job boxes and more.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit. Key lock features Dual Armor construction: laminated steel lock body surrounded by stainless steel and zinc outer components and Tough-Cut octagonal boron-carbide shackle is 50% harder than hardened steel 4-Pin cylinder and dual ball bearing locking for increased pick and pry resistance; Reinforced body bumper for increased scratch resistance 2 in. (51 mm) wide lock body; 3/8 in. (10 mm) diameter shackle with 2-1/2 in. (64 mm) length, 15/16 in. (24 mm) width; Extended shackle for application flexibility Includes two padlocks with two keys; Both keys open all locks, Manufacturer: Master Lock