Abus 797 KeyGarage # 10797 ABUS knob mounted (with shackle) protected key storage box, with 4 dial combination, for keys and other valuables. The solid metal storage box has a 4 dial combination lock which can be set to any 4 digit combination. To open, simply slide down the protective cover and enter your combination. This product comes with detailed instructions. Keep spare house or car keys safely stored in this lock box instead of under the mat or flower pot. Ideal if you need to give someone temporary access to the house or if the kids get home from school early or if you simply lock yourself out. Other than real-estate purpose, this lock box is a popular with hikers, campers, mountain bikers etc. Keep a car our truck key with the vehicle in case a group member returns earlier. Simply hang the lock box under the car to a frame or suspension member. Dimensions are 3-3/8" wide x 3-17/32 high x 1-3/4" deep.