The Master Lock no 875DLF padlock features a 2 in (51 mm) wide zinc body for strength and reliability. The 5/16 in (8 mm) diameter shackle is 1-1/2 in (38 mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The roller pin mechanism provides maximum protection against attacks. The shackle seal offers great weather protection. The lock includes set your own combination convenience, without the need for a reset tool. The 4 digit dialing allows for thousands of possible numeric combinations.