Nowadays, most vehicle rear/headlights come with a protective coating on the lens, but due to constant contact with road grime, weather variations and other elements, over time, this protective coating wears off and the lens becomes yellow, clouded and faded which can drastically reduce the visibility of the lights which also may be dangerous to you and other road users. With the E-Tech Headlight Lens Restoration Kit, this problem is easily fixed. The kit contains a headlight restoration compound which restores the headlight to a crystal clear finish and a surface sealant which provides a new and improved protective coat for the headlight.