[WIDE APPLICATION] - Its a great code key box for storing keys and bank cards etc. It can be wall mounted for home, office, warehouse, vacation home or anywhere you need it. You can share spare keys with friends, family, neighbors and caregivers. With this lockable outdoor key safe, you dont have to worry about the keys you have hidden under the carpet. [HIGH SECURITY] - Our wall mounted key safe is made of an aluminum alloy body. High quality aluminum and durable steel locking mechanism, which provides extra strength to the exterior key box to withstand hammering or drilling attacks. Weatherproof metal material can keep your keys and cards safe. [RELIABLE 4-DIGIT COMBINATION] - uses 4-digit combination to provide sturdy protection. The 4-dial combination key safe offers up to 10000 different combinations, is much more than 3-digit models, is also harder to crack. It is easy to redefine the desired combination at any time, wihic makes your valuables safer. (Note: Take a photo/write it down to save your code ) [MINI SIZE EASY USE] - External size (H x W x D): 3.7 x 2.95 x 1.37 inches, Internal size (H x W x D): 3.2 x 2.75 x 1.1 inches. Palm-sized key box comes, which can hold multiple keys, perfect for daily business, friends, relatives, home services, pet sitters, real estate business and rentals, etc.