Place the banner on the center of the window and tape both sides down on windshield. The pieces of tape acts as a guide for later. Peel of the backing paper while spraying with water. Now, line both sides of the banner to the guides that you created with the tape. Take a squeegee, or credit card, and slowly lay the banner down while pushing out all water. Make sure it is bubble free then allow banner to dry before trimming excess off. Note: it is easier to install on a clean, warm windshield. Clean windshield only with water and soap while avoiding chemicals.