These 12 x 16 inch flags hook comfortably onto your side window and stay on when the window is in the up position. Pole and flag are sturdy enough to hold up under highway speeds. Made of super polyester for endurance and brilliance-colorfast dyes to prevent fading from sun. Order online or call toll free (866) 425-0803 ON SKYPE Possum 045 We want to earn you business.