the knob hole is a fast easy way to repair drywall whare the doorknob has made a hole or dent. simply use the knobhole as a hole saw by twisting it as you apply pressure to the area the door knob damaged. make sure to line up the door knob by putting the knobhole insert on the door knob and open the door all the way to the wall. once the hole is made simply push the knobhole into the hole it created and your done. it seals the hole and allows the door knob room when the door is all the way open. can be painted to match wall or left as is .