The product is a MTH 20-3578-1 Union Pacific Premier Big Boy #4000 4-8-8-4 steam locomotive with a scale of 1:48. It is made of diecast material and features a digital control system. This model train is in O gauge and comes with a Proto 3 LN/Box for display and operation. Made by MTH in China, this AC-powered locomotive is a collector's item for train enthusiasts and model railroad enthusiasts alike.