Build your own steampunk-style toys with amazing steam effects. The TrainBot 2-in1 Steam Maker Kit lets you make a train or a walking robot, with cool water vapor "steam" that lights up in a fiery orange glow. This retro-futuristic model is packed with modern technology, including an electric motor, LED lights, circuit board and an ultrasonic atomizer that transforms tap water into a fine mist. The illustrated manual includes step-by-step assembly instructions plus the scientific principles used in this unique kit. Ages 8+. TrainBot 2-in-1 Steam Maker Kit.