The Master Lock 3QLD Laminated Padlock features a 1-9/16 in. (40 mm) wide laminated steel body for maximum strength and reliability. The 9/32 in. (7 mm) diameter shackle is 1-1/8 in. (19 mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual ball bearings provide resistance against prying and hammering. The limited lifetime warranty provides peace of mind from a brand you know and can trust. Features: Indoor and outdoor padlock; best used for residential gates and fences, sheds, workshops and garages, storage lockers, tool boxes and more Key lock is constructed with laminated steel body and a hardened steel shackle for strength and security Four-pin cylinder for increased weather and pick resistance; dual ball bearing locking for maximum pry resistance 1-9/16 in. (40 mm) wide lock body; 9/32 in. (7 mm) diameter shackle with 1-1/8 in. (19 mm) length, 5/8 in. (16 mm) width Four padlocks, two keys; both keys open all four locks; Keyed alike for convenience