The Master Lock No. 1TRILJ laminated padlocks feature a 1-3/4 inch (44 mm) wide laminated steel body for maximum strength and reliability. The 5/16 inch (8 mm) diameter shackle is 2 inch (51 mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 4 pin cylinder prevents picking and the dual locking ball bearings provide resistance against prying and hammering. Laminated steel body with hardened steel 2-1/2" shackle clearanceExtra long shackle for greater reachSame key opens all three locks1-3/4" wide3 per cardDual ball bearing locking for maximum pry resistance