The Master Lock no. 5SSTLJ stainless steel padlocks feature a 2 in. (51 mm) wide laminated stainless steel body for maximum strength, reliability, and weather resistance. The 3/8 in. (10 mm) diameter shackle is 2-1/2 in. (64 mm) long and made of stainless steel, offering maximum resistance to cutting, sawing, and weather. The 4-pin cylinder prevents picking and the dual locking ball bearings provide resistance against prying and hammering. The lifetime guarantee provides peace of mind from a brand you can trust.