Large and Safe Storage: The large combination key box has enough capacity (approximately 4.5 x 3.7 x 2 inches inside) to hold keys for home, office or business. business. Other large car keys; you can also store some if necessary. Small things, like credit cards, ID cards, etc. Two unlocking methods: This password safe has a 4-digit password and a an emergency key; it allows you to define up to 10,000 combinations. You can set your own password and change it regularly for added security, which makes it hard to crack. If you forget your password, the recovery key will be more useful to you! Easy installation: make sure the key box can be installed on any solid surface. Drill the box into the wall at a higher cost without hassle or extra work. SOLID CONSTRUCTION: Our wall mounted key box is made of sturdy aluminum alloy, which is waterproof, corrosion resistant and durable. to bad weather. Ideal for outdoor installations. Wide Application: This large outdoor key box can be widely used