Lock box application: for indoor and outdoor use; wall mount key safe is best used for Key and access card storage; Large internal cavity allows secure storage for multiple keys Ease of use: resettable 4 digit combination for keyless convenience, set and reset your combination allowing thousands of personalized combination code options. Simple installation (mounting kit included) Durable design: lockable key storage designed for installation to a wall or other fixed object; metal body construction for durability and shutter door to protect combination dials from weather. Easy to secure and Share your keys: great solution for airbag and home rental. Gives easy access to care takers and home workers. Ideal to share keys with your family or roomates.