1. Larger than the normal size of other , can easily accommodate multiple door keys, car keys, access cards, and can also be changed to store credit cards, ID cards, USB thumb drives, etc. 2. Sturdy material-The key lock box is made of hard aluminum alloy, strong and durable. The password wheel has a protective cover to protect the password wheel from the weather. The TPE protective plate on the back reduces friction with the wall. 3. High security lock box-4 digit combination dial provides 10,000 combinations to realize the convenience of keyless use and safely store your keys. The high-quality password wheel slides smoothly, without worrying about stuck and unable to open. 4. Widely used-The combination lock box is designed for indoor and outdoor use. It is an important key storage lockbox for emergency entrances, hotels, , holiday houses, pet caregivers, etc. It has a wall-mounted design and can be installed permanently. External dimensions: 133 x 92 x 49mm Internal size: x 80 x 40mm Material:Aluminum alloy + steel + TPE colour:black Package Contents: 1 x Key code box 1 pack x expansion bolts Only the above package content, other are not included. Note: Light 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.