ABOUT WINDSHIELD REPAIR KIT:This windshield repair kit is designed to provide vehicle owners the necessary information and tools to repair small damages in automotive glass windshields,it will not suitable for cell phone screen.This glass crack repair kit should only be used on bulls-eye, spider web, star damages, and some combination breaks smaller than 1 inch (25 mm) in diameter. This kit will not repair surface pits larger than or cracks longer than 3/16 inch.If the damage(s) are in the Drivers Primary Viewing Area (DPVA), owners should have their windshield inspected by a professional glass repair technician to determine whether the windshield should be repaired or replaced.The use of this glass crack repair kit may not repair the full optical clarity of the glass,about only 90%.TIPS:As soon as damage occurs, cover area with transparent tape to keep moisture and dirt from entering the damaged area.The damage should be repaired as soon as possible to prevent small cracks from spreading.Do not work on a hot windshield, park vehicle in shaded area and open windows to cool glass surface.Ideal application temperature is 60F to 90F (15C to 32C). Allow the vehicle sufficient time to acclimate to this temperature if it has been in either a hot or cold environment.Surface mus.t be clean and dry to make a proper glass repair.Do not allow the resin to come into contact with the cars painted finish, wiper blades, or plastic trim as this may cause damage. Not all damages can be repaired to restore full optical clarity.IMPORTANT! To reduce the risk of chemical contact to skin and eyes, always wear safety glasses and gloves when handling this windshield crack repair kit.PACKAGE INCLEDE :1X Windshield Repair Injector1X Pedestal1X 2ml glass repair resin1X Razor2X Adhesive Seal5X Curing Film1X Instructions