The scientists at Estes have created a revolutionary hydrogen fuel technology. Now you can generate the fuel of the future and launch a rocket into the atmosphere! The Estes hydrogen fuel technology uses water to generate the hydrogen fuel needed to blast a sleek rocket 200 feet into the sky. The Hydrogen Fuel Rocket is a wonderful mixture of science and fun and will have you outside launching your rocket in only minutes. This set comes complete with a hydrogen fuel generating launch system, a four-point system check, a remote launch controller, propellant crystals, mixing bottle and two ready to fly rockets. Minor assembly acquired.