The key box is wall mounted design, 4-digit combination password, can secure storage for up to 5 house keys.

Features:
Wall mounted design, small body, do not occupy space.
4-digit combination password, easy to set and secure keys' safety. 
Can secure storage for up to 5 house keys.
Aluminum alloy material, durable to use.
Comes with screws and expansion tubes, easy to install.

Specifications:
Material: Aluminum alloy
Color: Black & Grey
Item Size: 110 * 90 * 35mm / 4.33 * 3.54 * 1.38in
Package Weight: 350g / 12.35ounces
Package Size: 130 * 100 * 55mm / 5.12 * 3.94 * 2.17in

Packing List:
1 * Key Box
4 * Screws
4 * Expansion Tubes
1 * Instruction