Product Description The Master Lock 3T Laminated Padlock with Key features a 2 in. (51 mm) wide laminated steel body for maximum strength and reliability. The 3/8 in. (10 mm) diameter shackle is 1 in. (25 mm) long and made of hardened boron alloy, offering maximum resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual ball bearing locking mechanism provides maximum pick and pry resistance. The limited lifetime warranty provides peace of mind from a brand you know and can trust. From the Manufacturer Master Lock 3T 2-Pack of 1-9/16" Wide Padlocks - Keyed Alike