Welcome to this wonderful shop！ Features: 1. Sturdy and safe, our lock box is not easily damaged by hammer, saw, drill, etc., which can effectively protect your keys 2. Use the instruction guide to reset the password at any time. 3. Easy to install: It is very easy to install using pre-drilled holes. Instructions for use: 1. Pull down the dust cover to expose the dial. 2. Rotate the dial to the set password combination 3. Fully open the door and add or remove keys. 4. Close the door, realign the combination dial to lock the door and hide the combination. 5. Close the dust cover. Specification: Product name: combination lock key box Product color: gray, black Product material: engineering plastic External dimensions: About 120mm*95mm*40mm Inner size: about 85*62*30mm Scope of application: all kinds of keys in the right size packing list: Key combination box*1 Wall screw*1 set Cat eye screw*1 set 1 x User Manual English Contains only the above package contents and does not include other products. Notice: 1. Keep the dust cover closed for increased weather resistance. 2. We do not recommend using the \\A-A-A-A\\ combination which is easy to crack. 3. It is recommended to rotate the dial weekly to make it easy to turn freely. 4. Light shooting and different displays may cause the item color in the picture to be slightly different from the real color. 5. Please allow the error of ±1-3cm for manual measurement. Thank you for your patronage！