1. The wall where the blackboard is installed should be level.

2. Place the blackboard in the installation position of the classroom. The lower edge of the blackboard frame is 90cm away from the platform floor and placed in the center (the height can be decided by the school).

3. Put the steel nails into the installation holes reserved for each blackboard, and gently tap a mark on the wall with a hammer (6 installation holes for each blackboard).

4. Take down the blackboard, punch holes along the marks just made with an electric hammer, and knock plastic bolts into the holes.

5. Put the blackboard well (the installation holes reserved in the blackboard should correspond to the plastic bolts knocked into the wall), and screw the plastic bolts in with self-tapping screws, and you're done.