Master Lock M1XTLJ Magnum Heavy Duty Padlock with Key, 2 Pack Keyed-Alike The Master Lock Magnum M1XTLJ Laminated Padlocks with Keys feature a 1-3/4 in. (44 mm) wide laminated steel body for maximum strength and reliability, and is surrounded by stainless steel and zinc outer components for weather resistance. The 5/16 in. (8 mm) diameter octagonal shackle is 2-1/2 in. (64 mm) long and made of Tough-Cut boron-carbide, 50% harder than hardened steel, offering maximum resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking ball bearings provide maximum resistance against prying and hammering. The Lifetime Guarantee provides peace of mind from a brand you know and can trust. Features Outdoor lock; Heavy duty padlock with key is best used for outdoor storage and fences, self-storage units lockers, tools, job boxes and more Key lock features Dual Armor construction: laminated steel lock body surrounded by stainless steel 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 1-3/4 in. (44 mm) wide lock body; 5/16 in. (8 mm) diameter shackle with 2-1/2 in. (64 mm) length, 13/16 in. (21 mm) width; Extended shackle for application flexibility Includes two padlocks with two keys; Both keys open all locks USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.