ELEOPTION Safe Key Lock Box Wall Mount ● Please keep the key box closed for weather resistance. ● It's NOT recommend to use combination such as "A-A-A-A", otherwise it might be easily cracked. ● Please rotate the dials weekly to keep them work properly. ● DO NOT forget your own password, or you have no way to get it back. ​​Key Storage Lock Box, 4-Digit Combination Lock Box Material：zinc alloy and heavy-duty steel ​Package Included: 1 x Key password box 4 x Screw 4 x Expansion plug 1 x User manual   Color ：gray、blue、orange、black、red、green Weight：500g Size: 4.06"*3.22"*1.47" (117*82*37mm) Wall Mount Design (Mounting Kit Included) Step 1 - Open the key safe, there are holes on the bottom. Step 2 - Hold the key safe to the wall or slab, mark the position of the holes by a pencil. Step 3 - Drill 3 holes on the wall or slab.   Step 4 - Put the plastic expanding plugs into the holes. Step 5 - Install the key box on the wall by the screws.