The Lionel 6-38329 Conventional Classics Freight Hauler Steam Set includes 7 pieces such as a coal car, caboose, auto rack, steam locomotive and tender, circus stock car, and barrel car. All items in the set are made of plastic and are designed in multicolor. This set, manufactured in 2010, operates on AC power and features an analog control system. With a scale of 1:48 and gauge of O, this pack is perfect for model railroad enthusiasts looking to expand their collection with high-quality Lionel products.