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; made in the USA