The Lionel 7-11981 Harry Potter Hogwarts Express 28 Pc Battery Operated Train Set is a ready-to-go pre-built set featuring a red electric locomotive, passenger car, ore/coal wagon, and track. This limited edition set is themed after the Harry Potter franchise and includes features such as light and sound functions. Made of plastic and powered by DC batteries, this O gauge set is suitable for ages 4 and up and is a great addition to any model railroads and trains collection.