Avoid this set at all costs. This set has to be one of the worst toys we've ever purchased. The engine, tender and passenger cars are cheap plastic and the track segments come undone easily. The wheels are very difficult to mount on the track correctly and perhaps most frustrating of all, the cars do not remained coupled. The supposed couplers allow for the cars to come undone so often that the train is constantly derailing. It's obvious Lionel could fix the problems with this set rather easily and without adding much to the total cost of the set and that they refuse to make these fixes because their expectation is that parents will be forced to buy the more expensove O gauge set. Seeing the expression on my four year old son's face when the cars constantly became uncoupled was heartbreaking. DON'T WASTE YOUR TIME OR MONEY ON THIS SET.