Increase your cabin ventilation with this easy to mount Kool Scoop air scoop. Swings out of the way when not in use. Kool Scoop will fit any side window vent that is hinged up, down or forward and doesn't have a thick frame. Made of durable, high quality, molded plexiglass, Kool Scoop is a quick and easy way to cool your cabin. Fits 4 3/8"w x 5 1/4"l vent.