Remember that one time when you were five, and you spent hours playing with dominoes? Yeah, we did too! Our domino Choo-Choo train set is here to bring back all the nostalgic memories of childhood playtime, only this time it's better than ever! We've added new features like automated laying and safe construction vehicle dominoes so kids can have even more fun! Plus, it encourages STEM development! They're finished with safe, non-toxic paints that will never fade. They're made from high-quality plastic with smooth edges to ensure your children's safety.