This is a set of three puzzle rails. They run on the puzzle when batteries are inserted. All have been tested and confirmed to work. ① Enoden (Enoshima Electric Railway) I don't know the correct way to assemble it. When assembled as shown in the photo, there is one puzzle piece (half size) that the train cannot pass through. It's possible that a puzzle piece is missing. → ★ I found one half-size puzzle piece! I will add photos later. ② Randen (Keifuku Electric Railroad) In very good condition. ③ Chuggington Made by Masudaya. In very good condition. The character is Pete. There are no noticeable major stains, but as these are used items that children have played with, there may be some minor scratches and small stains. Please refrain from purchasing if you are concerned about this.