This is a Williams 40306 Pennsylvania Railroad’J’ Class 4-8-4 Steam Locomotive and Tender #1120 with Willams 0-27 Streamliner 4 car Pennsylvania Tuscan Passenger set. The locomotive navigates 027 curves. The length is 19.5 and the height is 3.75. It has 6 drive wheels w/ 2 traction tires, it is powered by a single motor, steel rimmed wheels, a electronic 6-amp reverse board, also it does have a True Blast II digital whistle and bell, die-cast operating coupler, a smoke unit, spoked drivers, die-cast trucks, wire form handrails w/grabrails, smoke fluid is included. Williams 43254 Pennsylvania Tuscan O27 4-Car Passenger Set. Features a durable ABS plastic body, passenger silhouetted windows, die cast trucks, painted graphics, illuminated interior, operating knuckle couplers, and metal 3-rail wheels. Each measures approximately 11 inches.