... , bumper, side surfaces, mirrors, ceiling or in the trunk. Smart Pen, easy to use and not just for cars, bicycles and motors ... with soap and water then durulanIp, should be left to dry. - Smart Pen needs to be cleaned before use. - Liquid out until the ... sun rays. Tip clogged, remove the end of the Smart Pen, 4 to 6 hours a day, dipped into a solvent-solvent ...