About this item. High security key box - BTNEEU safe key box comes with 4 digit resettable code, up to 10000 combinations, really hard to break. Keeps your keys safe and allows you to securely share key access with neighbors, renter, family or friends, ideal for home, emergency entry, garage, vacation home, apartment and office . All Proof & Durable Design- Made of sturdy aluminum alloy, will protect the exterior key box from knocks, saws or prying eyes, it is rustproof and corrosion resistant. You can use it for a long time. Concave design on 2 sides, reduce slippage when opening it. Newly Convenient Design- The code wall mounted key box is designed with medium size, there is spacious space to store multiple keys, such as only spare keys/car keys/door security card. The design of the storage space differs from the traditional key lock boxes in the market, allows keys to be taken in and out easily. Exterior size: 13cm x 8.5cm x 5cm (H x W x D); Inner size: 11.7cm x 8cm x 4.2cm (H x W x. Easy to use & install combination- 4 digits for convenience Keyless, 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 fine workmanship. Comes with an instruction and assembly kit (4 free screws and 4 expansion plugs), very easy to follow, even a non-handyman can install it. Wide application- Open the box with key key with the correct password in seconds, it's a safe high value key for indoor and outdoor use, perfect for use by cleaners, laborers, elderly, children, Airbnb and rental houses. Perfect for home, garden, office etc. It would be a great helper for any occasion. See more details.