Single Sided Custom Printed Car Flag Window Flags. An affordable and efficient way to promote your business, show support of schools, sports teams and much more. Our custom car window flags are digitally printed onto polyester material, hemmed on all sides and are finished with a white heading and mounted onto flexible plastic poles. Pole, American, United States, President's Day, Memorial Day, Fireworks, Fireworks flag, pole flag, waving, waving flag, patch, american patch, sewing patch, american sewing patch, dealership, dealership flag, promo, advertise