The Williams 43453 C&O Chessie Sys O Gauge 3 Rail 60′ Madison Passenger 4-Car Set is a vintage toy train set featuring passenger cars with a yellow color scheme and interior lighting. Made of plastic, these cars have metal trucks and metal wheels for a realistic feel. The set includes four cars with knuckle style couplers and operates on a three-rail system. It is designed for O gauge model railroads and is ready to go out of the box, making it perfect for collectors or young train enthusiasts.