Locomotive Thomas and Friends Tobik with propulsion Preschool children can create their own adventures on the island of Sodor with their favorite characters from the Thomas and Friends All Engines Go series, thanks to Fisher-Price battery-powered trains. Just press the switch on the top of the locomotive to start the train for playtime (Each character sold separately and subject to availability). The locomotive's motorized engines are compatible with all Thomas and Friends tracks, except for wooden ones. (Track sets sold separately and subject to availability). Toy requires 2 AAA batteries.