Permatex Windshield Repair Kit is a complete kit for repairing small cracks and chips in your windshield. It includes everything you need to get the job done, including a resin injector, a curing light, and a razor blade. The resin injector is used to apply the resin to the crack or chip, and the curing light is used to cure the resin. The razor blade is used to remove any excess resin. The kit is easy to use and can be used on any type of windshield.