The Electronic Floor / Shelf Safe is a unique battery operated security system that can be mounted to the floor, a shelf, or a desk. Faceplate removes to reveal a backup key lock in case of battery failure, two keys included. The door is heavy-duty 8 gauge steel construction and the body is heavy-duty 14 gauge steel construction. Soft grey carpet with pressure sensitive adhesive lines the inside of the safe. Mounting hardware included. Four AA batteries included.