SOLID CONSTRUCTION: This lock box compatible withhouse 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 compatible withkeys 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 compatible withoutside 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 compatible withindoor or outdoor, apartment building, office, warehouse, garage etc. Perfect compatible withhome owners, family members, landlord, vacation rentals, property management, realtors etc. compatible withchildren after to school, friends access, emergency access, gardener, cleaners etc. Colour:dark gray Material:aluminum alloy Size: 105 x 65 x 48mm Package Contents: 1X Key Lock Box 4X expansion tube & screws 1X key tool 1X English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.