MADE IN USA Blue Star's Advanced Method for Do It Yourself Windshield Repair Kits contains a special deep penetrating resin requiring sunlight to cure. It will prevent stone damage from spreading avoiding windshield replacement. NOT RECOMMENDED FOR LINEAR OR SPIDER CRACKS. Four Easy Steps 1 : Mount Seal Over Break 2 : Attach Pedestal To Seal 3 : Add Resin To Pedestal 4 : Follow Simple Enclosed Instruction for Injector Sequence .. and YOU ARE DONE THIS KIT IS FOR 1 REPAIR ONLY. Simple and easy to use Cost Effective repairs Repair Stone Damage Clear Permanent Repair Easy to Use No Mixing Prevents damage spread Prevent Wiper Blade Streaking Restores windshield to near new condition Get the best cracked windshield repair system around only from Blue Star *Not Recommended for linear or spider cracks