【Large and Secure Storage】: The large code key box has enough capacity (inner dimensions approx. 10.5 x 9.5 x 5 cm) to hold house keys, office keys or other large car keys; and you can also store some small items if needed, such as credit cards, ID cards, etc. Two unlocking modes: This code key box has a four-digit code and an emergency key; so you can set up to 10,000 combinations. You can set your own access code and change it regularly to improve security, making it difficult to crack. Emergency keys can be more convenient if you forget the code! Easy to install: This outdoor key box comes with 4 screws and 4 nylon expansion wall anchors to ensure that the code key box can be mounted on any sturdy surface. No hassle or extra work is required to drill a box into the wall at a much higher cost. Solid construction: Our wall key box is made of a durable aluminum alloy that is water and corrosion resistant. Perfect for mounted outdoor spaces. Wide range of uses: this large outdoor key cabinet can be widely used in the home, garden, office, etc. It would be a valuable aid for all occasions. With it, you can store and secure your car key while surfing, instead of risking hiding it in the sand/under a rock, etc.