Master Lock Padlock, Shackle Diameter: 3/8 in, Shackle Height: 1-1/2 in, Shackle Width: 0.951 in, Shackle Material: Boron Carbide, Shackle Clearance: 1-1/2 in, Lock Type: Dual Ball Bearing, Key Type: Alike, Number of Pins: 4, Body Material: Steel, Zinc, Silver, Resists: Weather