PADLOCK APPLICATION: For indoor and outdoor use; laminated steel padlock is best used for storage units, sheds, garages, fences and more. DUAL-ARMOR PROTECTION: Small padlock has a laminated steel core for strength surrounded by brass & zinc outer components for weather resistance. HIGH SECURITY APPLICATION: Lock has a 4-pin cylinder for increased pick resistance and a Tough-Cut octagonal boron-carbide shackle that is 52% 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) 7.8 x 5.2 x 3.1 cm ; shackle (H x W x D) 2.5 x 2.4 x 0.9 cm ; 1 brass finish padlock ; 4 keys., Weight: 0.74295782294 Pounds, Manufacturer: Master Lock