WIDE APPLICATION: - This is a great key safe box for storing keys and bank cards, etc. It can be wall-mounted for home, office, warehouse, vacation home or wherever you need it. You can share spare keys with your friends, family, neighbors and caregivers. With this lockable outdoor key safe, you don't have to worry about the keys you have hidden under the carpet. HIGH SECURITY: - Our wall-mounted key safe is made of high-quality aluminum alloy body and durable steel locking mechanism, which provides extra strength for the outdoor key box to resist hammering or drilling attacks. The weather-resistant metal material can ensure the safety of your keys and cards. RELIABLE 4-DIGIT COMBINATION: - Uses a 4-digit combination to provide robust protection. The 4-dial combination key safe offers up to 10,000 different combinations, is much more than 3-digit models, is also harder to crack. It is easy to reset the desired combination at any time, wihic makes your valuables safer. (Note: Take a photo/write it down to record 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. The palm-sized key safe comes, which can hold multiple keys, perfectly suitable for daily activities, friends, relatives, home services, pet sitters, real estate and rental business, etc.