When you need heavy inter-yard work done, the extra horsepower of two units is often needed. To eliminate the need for another crew, the Cow & Calf (a cabless, semi-permanent booster unit coupled to a conventional switcher), are just what you're looking for. Rivarossi locomotives feature highly detailed plastic bodies dressed in authentic railroad colors and logos. Powerful German-made can motors have been combined with new transmissions to give a smoother ride.