The model at 1/32 scale measures about 10 inches long by about 3 inches wide by about 5 inches high (to the top of the cab). The hood and the main cab are made of diecast metal while the extended cab and details such as mirrors, exhaust pipes, steps, gas tanks, etc, are made of plastic with chrome finish. It has very nice details such as separate clear plastic headlights. The coloring is done is high gloss finish with accurate markings and branding. The wheels are free rolling and made of rubber. The rolling motion is very smooth so be mindful of where you display it (or chuck the wheels). The doors can open revealing nice interior details such as accurate seats, steering wheel and instrument panel. This is not a toy. Recommended for 15 and up. We ship in boxes, not envelopes. The Peterbilt 379 is a model line of Class 8 trucks that was produced by the Peterbilt division of PACCAR from 1987 to 2007. Serving as the successor to the 359, the 379 was a conventional-cab truck configured primarily for highway use, serving as the flagship of the Peterbilt model line. During much of its production, the 379 was popular among owner-operator drivers. In line with the Kenworth W900, the 379 serves as a popular basis for truck customization.