Founded in 1958, Estes Industries is one of the leading manufacturers of model rocket kits, engines and accessories in the United States. Located in Penrose, Colo., the company offers a variety of model rocket kits, which include hydrogen-powered and air-powered models. Its inventory of model rocket kits include engines, launch sets, starter sets, body tubes and nose cones. In addition, Estes Industries offers electrical-powered modeled aircrafts and its subsidiary COX, offers a wide range of products that include free flying, control line and radio-controlled aircrafts. Estes Industries also provides a wide range of specialty products, such as rocket-powered racers, play pucks and digital speedometers.