【Large & Secure Storage】: The large code key box capacity is large enough (inner size approx. 10*7*3mm) to place 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 4-digit digital code and an emergency button; It can be set up to 10,000 combinations at most. You can set your own access code and change it regularly to improve security, making it difficult to crack. Emergency buttons can be more convenient if you forget the code! 【Easy to Install】: This outdoor key box comes with 4 screws and 4 nylon expanding wall anchors to ensure that the code key box can be mounted on any solid surface. No hassle or extra work is required to get a box drilled into the wall at a much higher cost. 【Solid Construction】: Our wall-mounted key box is made of durable aluminum alloy, resistant to water, corrosion and weather. Perfect for outdoor mounting. 【Wide Application】: This large outdoor key box can be widely used in homes, gardens, offices, etc. It would be a good helper for all occasions. It allows you to store and secure your car key when surfing, instead of risking hiding it in the sand / under a rock, etc.