These toys run by the concept of induction. It is equipped with optical sensors underneath to detect dark markings usually from markers, crayons, and the like on white paper. The sensors will then register the marks as a track line. The toy then moves in the direction of the processed track line continuously. It’s easy to operate and it also comes with installed batteries! First, draw the kind of track you want the toy to follow using the magic pen or a dark marker or crayon. The toy will now run smoothly around following the track that you made. If the toy doesn’t follow the tracks properly, it’s probably because the markings you made are small and cannot be detected by the sensor.