The Lionel 6-19180 Santa Fe Aluminum Passenger 4 Car Set is a highly detailed and collectible toy train set designed to replicate the Santa Fe railroad. Made of durable aluminum, these passenger cars feature a classic gray color scheme and are brand new in their original packaging. With a gauge of O, these cars are part of the official Lionel line and are sure to delight train enthusiasts of all ages. Perfect for adding to a model railroad collection or for display as a standalone set, these Santa Fe passenger cars are a must-have for collectors and hobbyists alike.