This Headlight Lens Restoration Kit is designed to restore clarity to headlight lenses that have been become tinted  yellow, cloudy, or hazy over time. By restoring clarity to the lenses, performance and vehicle aesthetics will be  enhanced. Headlight lenses have either a hard surface layer, or a UV resistant coating on the outer surface of the  lens. Once a lens has been degraded by the sun or UV light and becomes yellowed or cloudy, it is necessary to  remove the degraded layer in order to restore clarity to the lens. The effort required to refurbish each headlight  lens will vary depending on the vehicle manufacturer, year, make, model, and headlight design.