Function: The toy train automatically lays dominoes in a neat line as it moves forward, creating a chain effect for fun play. Features: It typically includes lights and sounds (like music and engine running sounds) to enhance the play experience. Educational Value: It is designed as a STEM (Science, Technology, Engineering, and Mathematics) learning toy, promoting creativity, imagination, hand-eye coordination, and problem-solving skills. Ease of Use: It saves time and effort compared to manually setting up dominoes.