1. Products include: House number 12 cm = 5 inches. 2. Method of use: 1 Mark the position. 2.Hold the number in position just to the right of the pencil mark and mark through the screw holes with the pencil.. 3.Select a narrow drill that matches the width of the screws. Attach it to the drill. 4. Drill a pilot hole on each of the screw hole pencil marks. Hold the number in position. 5.Insert the screws into the holes. 6.Use a screwdriver to screw them into position. 3. Area of use: It can be easily installed on wood, concrete and brick. 4. Product advantages: The floating house number is easy to read, beautiful and modern. For quality, durability and rust resistance 5.Questions needing special attention: If you have any questions during the actual operation, please contact us directly for the first time.