Choo choo! TrainBots coming through! 

experiment manual includes step-by-step assembly instructions as well as a fun, comic-book-style story that brings the TrainBots to life.

• Build your own funky, steampunk-themed robots that emit a safe, cool steam that mimics a real-life locomotive.
• Two robots to choose from: a rolling train or a walking robot; move a few pieces to go back and forth between each configuration quickly and with ease.
• An LED light illuminates the water vapor for a dazzling steam engine effect.
• Includes an electric motor, circuit board, and ultrasonic atomizer that helps teach kids about ultrasonic and sound waves as well as phases of matter.
• Manual includes a fun, comic-book-style story that adds to the play value of the kit and brings the models to life.