Glass Polish GP21101 Windshield Repair Kit, Chip and Crack DIY Repair, Removes Bulls-Eyes, Stars, Flower and Chips from Car Windshields Repairs any chip type: bullseye, half-moon break, star damage (see images), Repairs cracks up to 5mm (0.12inch), Advanced resin formula is 5 times stronger than the original glass, Clear and permanent repair Cures in sunlight, no mixing or additional tools required.