This is a turntable from a Chuggington set. It's a rare and hard-to-find part as it's not sold separately. When a train is placed on it, it automatically rotates, changing the direction of the train. One convex-convex rail is included. If you have a desired layout or additional parts, please comment. I will provide an estimate if I have the parts available. I have other items for sale as well ↓ #I love Plarail♪ is here 1227