Feature:1. Durable material: This key lock box is made of aluminum alloy, which can protect the box from hammering, sawing or prying. 2. High security: This product is an adjustable combinations lock with 4 dials. It can offer 10000 combination.3. Large storage capacity: The box has large space which you can place 5 keys at most. You can put your house keys or car keys in it when you go to work or on vacation4. Easy operation: It is easy to install and use it. You can set your favorite numbers as your passwords. The 4-digit combination is easy to remember and reset5. Wide application: The key box can be used in many areas. It is suitable for outdoor use. It can be fixed to a wall for emergency entry, vacation home, etcSpecifications:Material: Aluminum alloyScope of application: Key storageColour: BlackgrayStyle: Modern Package List:1 x Waterproof cover1 x Key box1 x Instruction manual4 x Screw4 x Expansion bolt