Enlarge Space Security Key Box The internal space is larger and the capacity is increased. External size: 120*88*48mm, internal size: 93*63*42mm. Novel appearance, patent protection. The perfect key storage solution for AirBnB rentals. Upgrade Anti-Pry Structure The new anti-tamper design improves security. Built-in groove design and built-in anti-tamper barrier, impossible to force the lock from outside, AAAAA security level. Humanized Design Both sides of the key box are recessed, non-slip, easy to grip and ergonomic. Built-in removable hook, you can hang the keys neatly, and you can take them out when you dont need them. High Quality Materials Made of zinc alloy, aluminum alloy and stainless steel, high quality and durable. Your key safe has a sliding weatherproof cover to protect the combination dial from natural disasters. The shell surface is frosted and the texture is improved. 4 Digit Combination You can customize your own password. Upgraded metal material switch button, opening the cover easier. Note: After resetting the password, it is better to take a picture and save it, otherwise you cannot open it if you forget the password.