STURDY DESIGN: This heavy duty padlock is constructed with 22 layers of galvanized which are superimposed and secured through 8 rivets. Travate keyed alike padlocks are coated with nickel plating that makes them weather resistant and corrosion resistant HIGH SECURITY: The hardened steel shackle of key lock will prevent of bolt cutter attempts on breaking it. 4-pin cylinder prevents picking and the dual locking ball bearings provide resistance against prying and hammering Padlock Set: 12pcs keyed alike laminated steel padlocks come with 24 same keys, 12 of them can be used as keys for daily use and another 12 keys as a spare key. There is no need to worry about losing keys Specification: 1-9/16 in. (40 mm) wide lock body; 1/4 in. (6 mm) diameter shackle with 2 in. (50.8 mm) length, 4/5 in. (20.5 mm) width Widely Application: Our Travate keyed alike padlocks can be used for indoor and outdoor. This waterproof and rustproof padlock is good used for public storage locker, Pods, storage units, garages & sheds, trailers, moving trucks and more