This is the Oyama Schuppo series. It's a toy where you connect rails like Plarail and run trains. This product also includes Dia Block, so you can play with blocks at the same time. The train itself is secured with a band, so its operation has not been confirmed. As this is a product from about 40 years ago, there may be defects. Thank you for your understanding. TOYBOX Oyama Schuppo Block Play Set Made in 1984 Showa retro toy Kawada Dia Block Junior Discontinued Rare Deadstock