CURT forged ball mounts also come with a thick skin. We coat each ball mount in a black carbide powder coat finish to provide superior rust, scratch and UV protection. A forged ball mount is an excellent choice for hauling all kinds of heavy trailers. Whatever type of load you are towing -- livestock, industrial equipment, construction materials -- these class 5 ball mounts help you complete the job. Use a forged ball mount to tow large utility trailers, livestock and cattle trailers, toy haulers, RVs and large boat trailers (NOTE: Never exceed the lowest weight capacity of any towing component; i.e. the vehicle, hitch, trailer, etc). CURT forged ball mounts are engineered to be a perfect counterpart to the CURT class 5 Xtra-Duty trailer hitch, making them the ball mount of choice for full-size pickup trucks and SUVs.