The Colad Body Line Marking Tool is designed for body shops. This unique marking tool helps you to follow and mark the original body lines of a vehicle in a fluid motion. The included pencil will mark the outer body lines of vehicle design, even on difficult round and curved auto parts, like wheel housing, doors, etc. This can be used to follow the line and improve and speed up the sanding process. Use this tool as an excellent preparation for sanding the object. The tool is equipped with a handy build-in pencil sharpener.