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. Peterbilt 389 is a series of "Tractor unit" type trucks in semi-trailer and full-trailer configurations, used for towing, manufactured by the American Peterbilt (official name: Peterbilt Motors Company) which are manufactured From the end of 2006 until today in the United States . In the United States , Peterbilt 389 models are defined as Class 8 trucks, meaning a truck whose gross vehicle weight rating is 33,001 pounds (14,969 kilograms) . and above. The Model 389 was the embodiment of Peterbilt?s ?Pride and Elegance.? The long, low hood ? the longest ever on a Peterbilt truck! Distinctive wrap-around crown. Large, triple-bar grille with rectangular mesh. Classic headlight pods. Huge chrome air cleaners with dual straps. Large, West Coast-style mirrors. And those towering chrome exhaust stacks. Inside, there was rich luxury, comfort and wonderfully open sight lines through the wide windshield.