LARGE SECURE STORAGE: The large combination key box has enough capacity (approximately 4.5 x 3.7 x 2 inches inside) to hold home, office or business keys. company. Other large car keys; you can also store it if needed. Small things, such as credit cards, ID cards, etc. Two unlocking methods: This combination safe has a 4-digit combination and emergency key; it allows you to define up to 10,000 combinations. You can set your own password and change it regularly to increase security and make it harder to decipher. The recovery key will be more useful to you if you forget your password. Easy to install: Make sure the key box can be installed on any solid surface. Drill the box into the wall at a higher cost with no hassle or extra work. Sturdy Construction: Our wall-mounted key box is made of sturdy aluminum alloy, which is waterproof, corrosion-resistant and weather-resistant. Very suitable for outdoor installation. Wide Application: This large outdoor key box can be widely used in homes, gardens, offices, etc. Will be of great help in any occasion. It allows you to keep and protect your car keys while surfing without risking hiding them under sand/rocks etc.