Marking tools can be used to label stone, metal, plastic, rubber, or wood. Tires, sheet metal, lumber, and concrete are all marked with permanent paint industrial markers in bright colors for simple identification. Marking chalk creates bright, easy-to-see straight lines, making sawing and painting more precise. Saw cut lines and drywall are marked with a carpenter pencil. Metal and wood workpieces can be marked and positioned with scribers and probes.