Domino TrainProduct Information Features: 1. The domino train is made of high quality plastic, non toxic and tasteless. The edges of each domino are smooth and polished without burrs to make the domino feel smooth. Make sure your child plays safely. 2. Automatic laying, easy to use. Put the plastic dominoes in the bracket, and then put them on the train. Turn on the switch. With the train running, the building blocks will fall off automatically. If you want to