The key lock box wall mounted has an outer dimension of 11.5 x 9.5 x 4cm (4.5" x 3.7 x 1.6"), Weight 200g (7oz). Internal cavity is 10 x 8 x 3cm (4" x 3.1" x 1.2"). The door key safe box outdoor comes in colour black Our lock key box is designed to keep keys and entry cards safe and secured while sharing easy access when needed with the 4-digit combination lock code. The security key box can be securely fixed to a wall or other solid surface in your desired discrete location on your property. Our lock box key safe is made from tough ABS plastic and an aluminium alloy locking mechanism. The emergency key box can be fixed indoors or outside and is weather resistant, with a shutter door to protect the combination dials and opening button. Our key lock box outdoor comes with 4 x screws and wall fixing plugs, easy to install on the desired surface with full instructions provided. The 4-digit keycode can be easily changed to your own personal combination using the supplied instructions. Our key code lock box is ideal for spare keys, emergency entry, rented accommodation, housekeeping, house sitters and more. The combination key lock box can also be used to hold other items that need to be stored securely. NOTE: Not suitable for car keys, or keyless entry radio frequency keys.