Big Train Set With Lights And Sounds (Medium Size Track). Lets your child have fun pretending to go on exciting adventures. Sporting a variety of colours, it will definitely attract their attention. With a sweetly smiling on his/her face, this engine will bring cheer to your little one's life. This motorized railway starter set runs on one aaa battery, which is easy to source. Moreover, it will serve as a nice gifting idea for a kid who loves train sets. Help your kids enjoy playing the role of a stationmaster by getting them the thomas and friends starter set.