Features: Large & Secure Storage: The large capacity key safe (internal dimensions approx. 4.5 x 3.7 x 2 inches) is big enough to hold house keys, office keys, or other large car keys; you can also store small items if needed, such as credit cards, ID cards, etc. Dual Unlocking Modes: This combination key lock box features a 4-digit numerical code and an emergency key; it allows you to set up to 10,000 combinations. You can set your own passcode and change it regularly to enhance security, making it difficult to crack. Emergency keys can be more convenient if you forget the code! Easy Installation: This outdoor key box comes with 4 screws and 4 nylon expanding wall anchors to ensure the key safe can be mounted on any solid surface. No fuss or extra work is needed 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 harsh weather. Perfect for outdoor mounting. Wide Application: This large outdoor key safe can be used at home, in the garden, office, etc. It would be a great help on any occasion. It allows you to store and secure your car key while you are out surfing, instead of risking hiding it in the sand/under a rock, etc.