Our decals are made with high quality vinyl. It is specifically designed for vehicles and outdoor uses. Additionally all decals are laminated to ensure long lasting quality. Black background represents your vehicles window. Installation Instructions: Step 1: Clean the area with rubbing alcohol or soap and water. Do not use Windex. Step 2: Prepare the sticker, firmly rub a credit card across the clear transfer tape. Step 3: Peel the white backing off the sticker. If the sticker clings repeat Step 2. Step 4: Lower the sticker onto the surface and rub it in place firmly with a credit card. Step 5: Slowly peel the clear transfer tape off at an angle.