Large Secure Storage: The capacity of the large coded key box is large enough (inner size about 4.5 * 3.7 * 2 inches) to place house keys, office keys or other large car keys; And you can also store some small things if necessary, such as credit cards, ID cards etc. Two Unlocking Modes: This coded key safe has a 4-digit digital code and emergency button; It can 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 keys can be more convenient in case you forget the code! Easy to Install: This outdoor key safe comes with 4 screws and 4 nylon expansion wall anchors to ensure that the coded key box can be mounted on any solid surface. No fuss or extra work required to have a box drilled into the wall, much more cost-effective.Easy to Install: This outdoor key safe comes with 4 screws and 4 nylon expansion wall anchors to ensure the coded key box can be mounted on any solid surface. No fuss or extra work required to have a box drilled into the wall, much more cost-effective.Wide Application: This large outdoor key box can be widely used in home, garden, office, etc. It would be a great helper for any occasion. It allows you to keep and secure your car key when you are surfing, instead of risking hiding it in the sand / under a rock, etc.