This is a Plarail train set. The Hayabusa and Komachi models have moving gimmicks and can be connected. The Hayabusa, Komachi, and Thomas trains are all three-car sets and can be connected without issue. Also included is one intermediate car limited to the 2019 Plarail Expo. They haven't been played with much, so they are relatively clean. There is some dirt on the top of the Komachi, and other minor scratches can be seen, so please refrain from purchasing if you are concerned about used items. I have checked the operation by inserting batteries, and they run without any problems. The batteries will be removed and not included when shipped. Thank you for looking.