Sheep trailers come in two custom styles: bumper pull and gooseneck. A bumper pull trailer has a short neck and attaches to a towing vehicle by way of a bumper hitch. Gooseneck trailers are recognizable for their long arm (also called a tongue) that reaches over the bed of the towing vehicle and attaches to a hitch. Although the gooseneck towing style is stronger and thus has more weight capacity, bumper pull trailers also come in a variety of sizes to accommodate livestock.