Specifications: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 Driver’s 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%.Package Included:1X Windshield Repair Injector1X Pedestal1X 2ml glass repair resin1X Razor3X Adhesive Seal5X Curing Film1X Instructions