This is a bicycle lock, which is bers and more practical than a regular lock. No more fear of having your car stolen. Specifcations: Color: black Material: zinc alloy+alloy steel+ABS Item size: 721g / 1.6lb Package size: 125 * 115 * 65mm / 4.9 * 4.5 * 2.6in Package weight: 815g / 1.8lb Packing List: 1 * Bike Lock Bike Locks Sports & Rec