Put your company, school or organization's imprint on the Tirefly. These replace the regular air valve stems that are used on motor vehicles, cars, trucks, motorcycles and bicycles. As the wheel turns the Tirefly emits a color ring in a circular pattern. When the vehicle is not moving the Tirefly is off and only responds to the motion of the vehicle. Fits on any valve stem. Available in Red, Yellow or Green emitting lights. Minimum imprintable quantity is 100. For all pricing and further information you are invited to give us a call at 206 285-5359 or email us at donace@promotionalproductsandideas.com