Master Lock - 4-pin Tumbler Padlock Keyed Alike - Steel - 1.5 In.

The 4-pin cylinder prevents picking and the dual locking ball bearings provide resistance against prying and hammering. The 9/32 inch (7mm) diameter shackle is 3/4 inch (19mm) long and made of stainless steel, offering extra resistance to cutting, sawing and weather. The use of high-end materials combined with advanced manufacturing processes and mechanical design features yield a consumer padlock that delivers the highest levels of security available.