Night Drop Box Wall Mount Convenient after hours metal key drop box made for outdoor use. Key drop here decal applied to the drop cover (included). Envelope instruction decal can be placed in a visible location on the inside of the key drop box. Measurements: Front Outside – 17 5/8″W x 18 3/4″ H Back Outside- 16″W x 14 1/8″H Inside Pocket- 12″W x 4 1/8″H Depth: 4″ Mounting hardware not included in kit.