DOSIA Key Lock Box Wall Mounted Aluminum alloy Key Safe Box Weatherproof 4 Digit Combination Key Storage Lock Box Indoor OutdoorColour: Black,GrayMaterial: Aluminum alloyInstructions for use: 1.Pull the weather cover down to reveal the dials.2.Rotate dials to the current combination 3.Pull the door fully open and add or remove the keys.4.Close the door, realign the combination dials to lock the door and conceal your combination. 5.Close the weather cover.Inner Size: Approx.90*62*30mmnote: 1.Keep the weather cover closed to increase weather . 2.We do not recommend use the combination such as "A-A-A-A" which is easy to crack.3.It is recommended the dials are rotated weekly to keep them moving freely.Package Included: 1 x Key Storage Box4 x screws 4 x Expansion tube1 x User Manual(English)Only the above package content, other products 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.