Product Dimensions 12D x 9W x 4H cm Heavy Duty Key Case - High tensile aluminum alloy material makes it strong enough to withstand knocks from hammers, saws and prying tools. Plus, the key box is rust and corrosion resistant. Emergency Key Box - If you forget your keys or if a friend, real estate agent, babysitter, etc. is not at home. not at home. not at home. When you need it temporarily, you can enter the password to get a spare key or other small items, and you can change the password later to ensure the safety of the key. KEY CASE WITH COMBINATION - The combination will automatically combine to keep your keys safe. The material and design of the exterior wall key box protection makes it resistant to corrosion, water and dust. Large capacity key safe - The storage space of the safe at keys has been improved, it can hold at least 5 house keys, and it can also temporarily store small car keys, documents and other small items. EASY TO INSTALL AND USE - The security key box is very easy to install and use, there are multiple installation methods for you to choose, no power required. It can be installed at the entrance of your home, garage, business or indoors to lock small items.