This Master Lock 5-pin tumbler steel padlock is ideal for keeping sheds, gates, and outbuildings safe. It is suitable for multiple padlock applications, for indoor and outdoor use. The stainless steel padlock is best used for self-storage units, sheds, trailers, moving trucks, and vans. Durable design features a covered keyway for maximum weather protection and a reinforced body bumper for scratch resistance. High security lock has a 5-pin cylinder and ball bearing locking for maximum pry resistance. High security shackle is tough-cut octagonal boron-carbide, 50% harder than hardened steel. Specifications: padlock dimensions (W x H x D) 6.4 x 12 x 3 cm; shackle dimensions (a x B x C) 1.1 x 5.1 x 2.3 cm. Includes 1 padlock and 4 keys. Limited lifetime guarantee. Weight: 1.51237111732 pounds.