CURT 2" trailer hitch balls are constructed from quality steel and are made with precision to fit your 2" trailer coupler like a hand in a glove. They are able to tow most standard-duty and heavy-duty trailers. These tow balls are an excellent extension of your class 3 or class 4 trailer hitch and ball mount, and are the ideal choice for most pickup trucks and SUVs (NOTE: Never exceed the lowest weight capacity of any towing component; i.e. the vehicle, hitch, trailer, etc). This particular 2" trailer ball offers a ball capacity of 10,000 lbs. It features a 1-1/4" shank diameter, a 2-5/8" shank length and a stainless steel construction to protect against rust and scratches. With its fine-threaded shank, this 2" trailer ball also offers an added measure of holding strength and provides smooth installation and torqueing. To give you peace of mind while towing to that next destination, we also carefully test our trailer balls and ensure that each one meets U.S. VESC specifications.