【High Security Key Box】 - BTNEEU safe key safe comes with a 4-digit resettable code, up to 10000 combinations, really hard to break. Ensure the security of your keys and allows you to safely share access to keys with neighbors, tenant, family or friends, ideal for home, emergency entrance, garage, vacation home, apartment and office. 【Heavy Duty & Durable Design】- Made of sturdy aluminum alloy, will protect the outside key box from knocks, saws or prying eyes, it is rust-proof and corrosion-resistant. You can use it for a long time. Concave design on 2 sides, reduces slipping when opening. 【Newly Practical Design】- The wall key box code is designed with a medium size, there is a spacious space to store several keys, such as spare keys/car keys/door security card. The storage space design differs from traditional key lock cases on the market, makes it easy to enter and exit keys. Outer Size: 13cm x 8.5cm x 5cm (H x W x D); Inner Size: 11.8cm x 8cm x 4.2cm (H x W x D); 【Easy to Use & Install Combination】- 4 digits for keyless convenience, easy to remember and reset, you can set and reset your personalized password. The code key box will run smoothly in the operation process for its beautiful finish. Comes with instruction and assembly kit (4 free screws and 4 expansion plugs), very easy to follow, even a non-DIYer can install it. 【Wide Application】- Open the wall key box with the right password in seconds, it is a great value key for indoor and outdoor use, perfect for use by cleaners, workers, seniors, children, airbnb and rental houses. Perfect for home, garden, office, etc. It would be a great helper for any occasion.