MULTIPLE PADLOCK APPLICATIONS: For indoor and outdoor use; stainless steel discus padlock is best used for self storage units, sheds, trailers, moving trucks, vans and more. DURABLE DESIGN: padlock has a stainless steel body construction and covered keyway for maximum weather resistance, and a reinforced body bumper for scratch resistance. HIGH SECURITY LOCK: Lock has a 4-pin cylinder for increased pick resistance and key retaining feature ensures padlock is not left unlocked. HIGH SECURITY SHACKLE: Tough-Cut octagonal boron-carbide shackle that is 50% harder than hardened steel and fully shrouded design minimizes shackle exposure and protects against bolt cutter attacks. SPECIFICATIONS: padlock dimensions (W x D) 8 x 3 cm ; shackle (A x B x C) 1.2 x 1.7 x 2.4 cm ; 1 padlock ; 4 keys