Padlock application: For indoor and outdoor use; laminated steel padlock is best used for storage units, sheds, garages, fences and more Dual armour protection: Small padlock has a laminated steel core for strength surrounded by stainless steel and zinc outer components for weather resistance High security application: Lock has a four-pin cylinder for increased pick resistance and a Tough-Cut octagonal boron-carbide shackle that is 50 percent harder than hardened steel Durable design: Laminated steel lock has dual ball bearing locking for maximum pry resistance and a reinforced body bumper for scratch resistance Specifications: (H x W x D) 8.6 x 4.5 x 2.7 cm; shackle (H x W x D) 3.8 x 2 x 0.8 cm; one padlock; four keys, Weight: 0.5299030929432 Pounds, Manufacturer: Master Lock