Re-create fender curve lines perfectly every time with the DF-BL10 Body Line Marker Tool from Dent Fix. The Body Line Tool makes accurate measurements around the wheel opening moldings quickly and easily. Using the same method a compass uses to draw exact circles or arcs from a single point, this tool draws a line an equal distance from any part of the fenders edge. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.