Winners at the Automechanika/Motortec Fair 2013' Innovation Gallery !!! http://youtu.be/NEWh4cEQd2k
US Patent Nº 9,757,782 B2 Freely Rotating Magnetic Tip with Surface Trace for Dent Removal Rod
Free worldwide shipping for orders over 250EUR/275USD
This allows you to pick up the surface trace once you've finished the repair as doing so with your fingers can be tricky. You can also keep a trace here when storing tools so you have it to hand.
See video demo at http://youtu.be/dq27jW1kKrs