The Master Lock 174SSD Stainless Steel Outdoor Combination Lock with Resettable Combination features a 2-1/4 in. (57 mm.) wide stainless steel body for strength, reliability and weather resistance. Lock shackle is 5/16 in. (8 mm.) in diameter and is 1-1/16 in. (27 mm.) long and made of stainless steel, offering extra resistance from cutting, sawing and weather. Padlock roller pin mechanism provides maximum protection against attacks. Combination lock features sealed dials and shackle which offers superior weather protection. Four-digit lock combination dialing allows for thousands of possible numeric combination. With set your own combination convenience, there is no need for a combination reset tool. Master Lock's Lifetime Guarantee provides peace of mind from a brand you can trust. Color: Silver.