Electric Domino Train, 100 pcs Electric Domino Train Blocks, Automatic Domino Laying Train with Lights and Music, Educational Toy for Children Over 3 Years Old HIGH-QUALITY MATERIAL: Dominoes are made of high-quality plastic, safe and non-toxic. The plastic edges are rounded and smooth without edges or corners, enhancing safety and stability. This makes parents feel more secure and children happier. EASY TO INSTALL: Battery Installation: After installing two AA batteries, you can turn on the switch to play (you need to prepare the battery yourself); Domino Placement: Insert the domino tracks one by one with the track end. SIMULATION DESIGN: The designer skillfully integrates the train's chimney as a steering module, making it interesting and lively. As the locomotive runs, the headlights will light up and the sound effect will play. CULTIVATE MULTIPLE CHILD SKILLS: Dominoes are a leisure activity that encourages creativity and improves self-confidence. It's great for developing participants' intelligence and creativity. More importantly, you can cultivate participants' willpower and teamwork. HOLIDAY GIFT: It's the perfect gift to inspire children's thinking. Children can play together at parties and have many happy moments. Parents can also interact with their children. The domino train is suitable for boys and girls aged 3 and up.