Originally designed for Glow powered aircraft but now also popular for Electric powered aircraft. KAVAN AirWheels have the weight of foam wheels and the strength of conventional plastic/rubber air wheels. The unique manufacturing process creates tires with a constant wall thickness for a balanced tire without lumps and wobbly treads; giving superior directional stability. Use on paved or grass runways. SuperLight Deluxe AirWheels have a chrome-plated plastic hub with longitudinal grooved threaded tires. SuperLight Standard AirWheels have a gray-colored plastic hub with cross section treaded tire.