KER300644 is a part of the Ertl line of toys and is a miniature 1:64 scale die cast vehicle that is a detailed replica of a Freightliner M2 106 extended cab heavy duty truck. The die cast vehicle measures approximately 4 inches long and comes in a variety of colors, including red, white, and blue. The extended cab has detailed interior features, including seats and roll-down windows on either side, and many other details that are true to the real-life truck, such as chrome wheels and bumpers. Additionally, the KER300644 features opening doors, an opening hood for inspection, and a tilting fifth wheel for hauling trailers.