Permatex Bullseye Windshield Repair Kit is the first one-component windshield repair system designed to be used by the car owner. It has the same index of refraction as the original glass to make the repair virtually undetectable. This kit requires no mixing, no heat and is safe and easy to use. Permatex provides repair solutions for windshields, rearview mirrors, rear window defoggers and headlight lenses.