This is the MTH Premier Line 20-6577 Richmond, Fredericksburg &Potomac (RF&P) 5-Car 70′ Passenger Coach Set. Railway Express Baggage Car #184. King William Dining Car. Colonial Beach Observation Car. Metal Wheels and Axles. Die-Cast 4-Wheel Sprung Trucks. Operating Die-Cast Metal Couplers. Fully Sprung Opening Doors. Separate Metal Handrails & Ladders. Operates on 0-42 Curves. Car Measures: 19″ x 2 1/12″ x 3 3/8.