The Master Lock No. 1534D Set Your Own Word Combination Padlock features a 2-1/2 in. (64mm) wide metal body for strength and durability. The 1/4 in. (6mm) diameter shackle is 1-1/8 in. (29mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The soft touch dials with 2 grip points provide no-slip grip and keyless convenience. Interchangeable, removable dials offer over 25 million personalized combinations.