About this article. WIDE APPLICATION: - It is an excellent key code box to store 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 your friends, family, neighbors and caregivers. With this lockable exterior key box, you don't have to worry about the keys you have hidden under the carpet. HIGH SECURITY: - Our key wall box features a high quality aluminum alloy body and durable steel locking mechanism, which provides additional strength to the outer 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: - WACCET 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 the 3-digit models, is also more difficult to crack. It is easy to redefine the desired combination any time, wihic makes your valuables more secure. (Note: take a photo / write it to save your code ). MINI SIZE & EASY USE: - External size (H x W x D): 3.7 x 2.95 x 1.37 inch, Internal Size (H x W x D): 3.2 x 2.75 x 1.1 inches. The palm-sized secure key box is delivered, which can hold multiple keys, perfectly suited for daily activities, friends, relatives, home services, pet sitters, real estate affairs and Airbnb rentals, etc. EASY TO INSTALL: - The key code box is delivered with instructions in 5 languages and an assembly kit. Just 4 simple steps to complete the installation: Draw the outline of the screws Drill the holes Nail in the expansion plugs Install the box using screws. You can give this outside code key box as a gift to parents living alone or children living in a rented house, which is convenient for them.