Stock #413949 – combine, 7.5″L x 3″H, is die-cast and plastic with front rubber tracks and rear rubber tires, movable plastic auger and plastic 7.75″ wide draper grain head. Peterbilt cab is plastic with rubber tires and comes with an all die-cast lowboy trailer with rubber tires. Gooseneck is NOT detachable. Truck and trailer measure 12.5″L x 2.25″H x 2.25″W. Made by Ertl, for ages 3 & up.