All vehicles carry a federally assigned number known as Vehicle Identification Number (VIN). Making sure those numbers are marked permanently on a vehicle’s windows steers thieves away. The windows of stolen VIN etched vehicles must be stripped and replaced before a thief can get rid of the car, a costly and time - consuming process. VIN etching is simple, fast, safe and won’t mar the look of the vehicle. Numbers are etched into the glass with a chemical solution and those numbers will be there for good.