CURT class 3, or standard-duty, ball mounts are a step up from classes 1 and 2. They feature a 2" x 2" shank and have a higher weight capacity for towing heavy-duty trailers, including utility trailers, boat trailers, campers, single-horse livestock trailers and most recreational vehicle trailers. With class 3 trailer hitches being the most common type of trailer hitch for pickup trucks and SUVs, the class 3 ball mount, by association, is an excellent complement to this trailer hitch and these larger vehicles (NOTE: Never exceed the lowest weight capacity of any towing component; i.e. the vehicle, hitch, trailer, etc).This particular class 3 ball mount has a gross trailer weight capacity of 7,500 lbs. and a tongue weight capacity of 750 lbs. It features a length of 8-1/4", a drop of 4" and a possible rise of 2". It also comes with a pin and clip for immediate installation. Class 3 ball mounts are CNC-formed and robotically welded to ensure unwavering precision and dependable strength in each and every unit. Curt mechanically descale each one to provide a smooth surface for a long-lasting finish. This class 3 ball mount comes with a durable gloss black powder coat finish to protect against corrosion, scratches, UV damage and more to give it the thick skin it needs to face the road ahead., CLASS 3 BALL MOUNT WITH PIN (2" SHANK, 7,500 LBS., 4" DROP, 8-1/4" LONG, IN BOX) #45052 Fits trailer hitches with a 2" x 2" receiver tube opening. Equipped with a 1" hole to accept a trailer ball shank. 2" rise or 4" drop for precise trailer leveling. Hollow shank weighs less and can be used with an anti-rattle kit. CNC-formed, robotically welded and mechanically descaled for a perfect fit. Protected by a durable powder coat finish. Assembled in USA. Limited lifetime warranty (one-year finish, one-year parts). Notes: Includes hitch pin & clip (ball sold separately).