Intricately Detailed, Durable ABS Bodies Die-Cast Truck Sides & Pilots Metal Chassis Metal Handrails and Horn Authentic Paint Scheme Metal Wheels, Axles and Gears (2) Remote-Controlled Proto-Couplers (2) Operating Metal Couplers Prototypical Rule 17 Lighting Directionally Controlled Constant Voltage LED Headlight (2) Precision Flywheel-Equipped Motors Onboard DCC/DCS Decoder Locomotive Speed Control In Scale MPH Increments Proto-Sound 3.0 With The Digital Command System Featuring Freight Yard Proto-Effects Unit Measures: 40 1/4” x 2 5/8” x 3 3/4” Operates On O-31 Curves