Unique auto-laying feature: fill the plastic blocks and start the train to lay your dominoes trail, adding more drama to the dominoes racing game. 2 "AA" size batteries are required (not included) Please use low energy batteries such as "R6P, 1.5V" batteries.ENDLESS DOMINO RACING FUN: Build the domino race track you want with 60 colorful plastic blocks. Make it super fun for your kids! Line them up, push one, and watch the dominoes cascading, tumbling like a game.Encouraging STEM Development: Domino's is designed to engage kids in their early STEM development, encourage kids' spatial thinking skills, color recognition skills, and keep your little engineer coming back for more funPERFECT GIFT FOR BOYS AND GIRLS: These plastic Blocks dominoes are finished with non-toxic paint that's safe and won't fade. Dominoes are made of high quality plastic with smooth edges to keep children safe while playing. This is a fun toy, especially if you and your kids/grandchildren are domino racing fans, it can also be used as a Christmas gift, a Halloween gift, a kid's birthday surprise and a jigsaw puzzle to give your kids a good time of entertainmentOur trains are equipped with train ringtones and simulated train sounds.Dominoes boy and girl setA great and super fun toy for your kids to play with. Pushing one of them will have a knock-on effect. Develop math, science, spatial, tactile skills and your child's imaginationDevelop your child's fine motor skillsGreat for young children's color recognition, hand-eye coordination and fine motor skills. Kids can use the blocks to make different arrangements and they won't stop playing with them. They will love bright colors! Helps children's imagination.product information:material: plasticColor: transparentSize: reference picturePower: 2 "AA" batteries (not included)Package Included1* Domino Train60 * plastic blocks (random color)1 * Cactus Accessories