Able to tow up to 17, 000 lbs. of gross trailer weight and up to 2, 550 lbs. of tongue weight, giving them more power to handle especially heavy loads. 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. 5"" rise or 6"" drop for precise trailer leveling | Curt Forged Ball Mount, 6" Drop