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 stainless steel & zinc outer components for weather resistance. VERY 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. BUILT TO LAST: 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) 9,1 x 5,2 x 3,1 cm ; shackle (H x W x D) 3,8 x 2,4 x 0,9 cm ; 3 keyed alike padlocks ; 4 keys. 30 YEAR WARRANTY