SOLID CONSTRUCTION: This lock box for house key is made of strong and durable aluminum alloy material, sturdy, unbreakable, have a long time use SECURE: All-metal high strength alloy material makes this lockbox for keys safe and secure, no breaking, prying or stealing issues, the protection waterproof cover prevents the box from water and dust EASY TO INSTALL: Easy to install the key lock box for outside on wall or door with the included mounting hardware, no power source required EASY TO SET CODE: Remove the inside white plastic cover and turn the screws to the desired code, and replace the cover, the combinatinon password code is changeable as your demands WIDE USE: This key lock box is very versatile, you can store keys or others little items in the key cabinet for indoor or outdoor, apartment building, office, warehouse, garage etc. Perfect for home owners, family members, landlord, vacation rentals, property management, realtors etc. for children after to school, friends access, emergency access, gardener, cleaners etc.