Front wheel and follow-up wheel became spoke wheels, and the undercarriage was tightened more. When combined with the 22-101 sound box and the 22-221-1 sound card D51, you can enjoy driving with the powerful D51 sound. The three-dimensional black finish of the wheel and wheels, and the dense and sturdy rods, the dynamic running device of the steam locomotive appearance, faithfully reproduced in both running. Body, and gloss erase paint in the image of the active aircraft of the JNR era, reproduce the copper color of the air action tube. There is a round window at the top of the cab wife surface, equipped with an ATS generator. Selective license plate: “352”, “453”, “611”, “829” [set contents] selected license plate, double coupler, triple knuckle coupler, replacement knuckle coupler.