The Master Lock No. 1504D standard dial combination padlock features a 1-7/8 inch (48 mm) wide metal body for durability, with a stainless steel cover. The 9/32 inch (7 mm) diameter shackle is 3/4 inch (19 mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The locking mechanism features anti-shim technology, offering maximum security.