This is a new type of boys' toy called "Chain Racer" that allows you to reconfigure the "Chain Lancer," a road that continuously and rapidly transforms, and run Chain Cars on it. It does not use batteries or a motor. It won the grand prize in the Next Toy category at the "Japan Toy Awards 2021." This item was used by a child, so I'm not sure of all the details, but I don't think there are any noticeable stains. It was a gift, and it hasn't been used very much, but the items in the photos are all that are included. I don't know the specifics, so I would appreciate it if you could judge based on the photos. There may be missing parts. Please refrain from purchasing if you are a nervous person or if you are very critical. Thank you.