Indestructible The wall-mounted key safe box is made of high-quality zinc alloy cast body and heavy-duty steel locking mechanism, which has outstanding water resistance, corrosion resistance and weather resistance. With the outer shell, a high-strength zinc alloy casting, the rust-resistant lockable key cabinets offer protection from weather, effectively resisting hammering, sawing or prying. Extremely High SecurityThe push button combination key safe box is so large that can hold 8-12 keys, car keys,access card and other small objects, which meets all the daily needs of the family. The weatherproof key lock box adopts a resettable 4-digit password and has 10,000 unique password combinations.Its very difficult for thieves to crack. Whats more, with the good zinc alloy materials, the key box has improving the anti-theft ability greatly. Ideal For Sharing KeysThe wall-mounted key safe can be used for indoor or outdoor. It is very suitable for daily needs such as home services, renovation, elderly people living alone, emergency medical care,Airbnb, and house rentals. Resettable key lock boxs allow you to keep your keys safe and securely share the access to your keys with neighbors, family or friends. Easy InstallationIt only takes you 15mins to install the key lock box. Exterior size of the key cabinets: 4.33*3.35*1.57in. Interior size: 3.94*3.15*1.38 in; Package contains a security key lock box, four heavy duty mounting screws, and four expansion nuts to ensure stable installation on any wall. You can set your own password and change it regularly to improve security. Please write down the password or take a photo for it.(Once you forget the password, the key box cant be used any more.)