About this item. IndestructibleThe key box wall mount is made of high quality zinc alloy and heavy duty steel, which has excellent water resistance, corrosion resistance and weather resistance. The outer shell of the key safe is a high-strength zinc alloy casting, which can effectively withstand hammering, sawing or prying. You can install it in front of your house, garage door, warehouse and office, you don't need to carry the key to go out. High Security FactorThe key box with code adopts a password 4-digit resettable password and has 10000 custom password combinations. You can set your own password and change it regularly to enhance security; installation is very simple, please take a photo or write down the password on paper after you set a new password. Once you forget the password, the key safe cannot be used. Wide UseThe key box with 4 digit code is quite large (internal size is about 3.94*3.15*1.38inch) and can hold 8 12 key, large car key and other small objects. The product includes a key box, four heavy screws and four expansion nuts to ensure stable installation on any wall. It is ideal for sharing access rights with your roommates. Ideal For Sharing KeysThe external dimensions of the large key box are: 11.0*8.5*4.0cm/4.33*3.35*1.57in. The wall key safe is suitable for indoor or outdoor use. It is ideal for everyday needs such as cleaners, renovators, elderly living alone, emergency medical care, family health visits, children's school, Airbnb and home rentals.