It removes air from the break, fills it with durable resin and makes it even stronger than before. For best results, repairs should be made as soon as possible after the damage occurs and before the break is contaminated by dirt or water. The kit works best on round damage not more than one inch in diameter, and cracks not longer than 12 inches. It will not repair damage to more than one layer of glass.

• DAMAGE CONTROL: Prevent cracks from spreading across your windshield
• SAVE MONEY: Able to repair bulls-eye, spider web, star damages, and some combination breaks smaller than 1 inch (25 mm) in diameter on your own without paying for repair service
• IMPROVED ROAD VISIBILITY: Smoothen all lumps and bumps so that drivers can enjoy a distraction-free windshield whilst driving 
• Repair all types of laminated windshields

• Just squeeze it onto the cracked surface and remove any residue
• The formula is non-toxic and has no harmful ingredients