Plastic lenses can yellow with age, reducing headlight brightness, and new lenses can be expensive. The 3Mâ ¢ Headlight Lens Restoration System lets you shine and restore plastic lenses, including headlights, taillights, fog and directional lights. Now you can produce professional results with the 3Mâ ¢ Headlight Lens Restoration System and a household drill (1200-1600 rpm).