Fun-filled play meets 1:16 replica scale with these toys from ERTL. These durable machines and accessories exhibit all of the details you would expect to find in replica product, but with the fun lights and sounds features designed for younger children. ERTL's Big Farm Hog Trailer with Duroc Pigs. Hog Trailer Features: Rear door opens, Moving rear gates, Movable jack stand & hitches to big farm tractors. Duroc pigs included - one sow, one boar and two pigs.