1. Large-Scale Secure Storage: The large-sized coded key box has a sufficient capacity (with internal dimensions of approximately 10 * 7 * 3mm), capable of accommodating house keys, office keys, or other large car keys. You can also store small items as needed, such as credit cards, ID cards, etc. 2. Two Unlocking Modes: This coded key safe comes with a 4-digit code and an emergency button. It can have up to 10,000 combinations. You can set your own access code and change it regularly to enhance security and make it more difficult to crack. If you forget the password, the emergency key will come in handy! 3. Sturdy Structure: Our wall-mounted key box is made of durable aluminum alloy, which is waterproof, corrosion-resistant, and weatherproof. It is highly suitable for outdoor installation. 4. Wide Applications: This large outdoor key box can be widely used in homes, gardens, offices, etc. It is a great helper for any occasion. It allows you to store and protect your car keys while surfing without the risk of hiding them under sand/rocks, etc.