"Quality padlocks from the worlds largest padlock manufacturer. All Master Lock padlocks are individually tested for strength and durability, and each offers a limited lifetime guarantee. Shackle Inside Dimensions H x W in. 7/8 x 13/16, Width in. 1 9/16, Keys Included qty. 2, Shackle Diameter in. mm 1/4 6, Includes qty. 2, Material Brass. 4-pin tumbler security Solid brass lock body is stylish and strong Both padlocks are keyed alike Limited lifetime warranty U.S.A."