Lock box application: suitable for indoor and outdoor use; wall mount key safe is best for storing keys and access cards; large internal space allows secure storage for multiple keys. Ease of use: resettable 4 digit combination for keyless convenience, allowing you to set and reset your combination for thousands of personalized code options; simple installation (mounting kit included). Durable design: lockable key storage designed for installation on a wall or other fixed object; metal body construction for durability and shutter door to protect combination dials from the elements. Easy to secure and share your keys: perfect solution for vacation rentals and home sharing; provides easy access for caretakers and service personnel; ideal for sharing keys with family or roommates.