LOCK BOX APPLICATION: for indoor and outdoor use, wall mount key safe is best used for key and access card storage. Large internal cavity with tray to allow secure storage for multiple keys. Push button to open front door. EASE OF USE: resettable 4 digit combination for keyless convenience, set and reset your combination allowing thousands of personalized combination code options. Easy opening with one hand. Retention container inside the door, keeps keys inside lock box when the door is unlocked. Simple installation with mounting kit included. BUILT TO LAST: lockable key storage designed for installation to a wall or other fixed object. Aluminium body construction for durability and removeable plastic cover to protect combination dials from weather. Push button to open the front door. Offers great weather resistance and discretion. IDEAL FOR SET OF KEYS: exterior dimensions (H x W x D) 129mm x 84mm x 43mm. Interior dimensions (H x W x D) 111mm x 72mm x 30mm EASY TO SECURE AND SHARE YOUR KEYS: great solution for AIRBNB and home rental. Gives easy access to care takers and home workers. Ideal to share keys with your family or roommates.