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 5-pin cylinder for increased pick resistance and a tough-cut octagonal boron-carbide shackle that is 50% 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) 9, 6 x 6, 4 x 2, 8 cm; shackle (H x W x D) 3, 8 x 3, 6 x 1, 1 cm; 1 brass finish padlock; 4 keys., Weight: 1.25222564816 pounds, Manufacturer: Master Lock