High security key box: key safe, 4-digit password, as many as 10,000 combinations, really hard to crack. Make sure your keys are safe and allow neighbors, renters, family members or friends to use the keys safely. It is very suitable for families, emergency exits, garages, holiday houses, apartments and offices. Rugged and durable design: It is made of durable aluminum alloy material, which protects the key from hammering, sawing or prying outdoors, and is rust-resistant and corrosion-resistant. You can use it for a long time. Concave design on both sides, not easy to slip when opened. Practical design: The key box with digital code is of medium size, and there is enough space for several keys, such as B. Replacement key/car key/door security card. The design of the storage space is different from the traditional key lock boxes on the market. You can easily pull the key in and out. External dimensions: 13cm x 8.5cm x 5cm (height x width x depth); internal dimensions: 11.7cm x 8cm x 4.2cm (height x width x depth) Easy to use and install: 4-digit combination, convenient keyless, easy to remember and reset. You can set and reset your personalized password. The key is safely placed outside during operation. With instructions and installation kit (4 free screws and 4 extension plugs), it is very easy to use, even non-DIY enthusiasts can install it. Wide application: Open the outer key safe with the correct password in a few seconds, which is an excellent key safe for indoor and outdoor use. It is very suitable for cleaners, workers, the elderly, children, and house leasing. Very suitable for homes, gardens, offices, etc. It is a good helper for any occasion.