Curt 1-7/8 Inch trailer balls are constructed from high-strength steel to match the towing power of your class 1 or class 2 trailer hitch and ball mount and come with fine threads on the shank for improved holding strength. Having a trailer ball that matches your coupler size is absolutely essential. At Curt, our trailer balls are engineered to be precisely fitted. When we stamp 1-7/8 Inch into the top of each hitch ball, we actually mean 1-7/8 Inch. This Curt tow ball features a ball capacity of 3,500 Pound. It is able to tow most utility trailers, boat trailers, campers, smaller livestock trailers and some recreational vehicle haulers (Note: Never exceed the lowest weight capacity of any towing component; i.e. the vehicle, hitch, trailer and more). As with any trailer, be sure that your towing equipment is capable of handling the load before hitching up. This trailer ball also features a 1 Inch shank diameter, a 3 Inch shank length, 0 Inch of rise and a nickel-chrome finish to protect against corrosion and wear. Like all Curt trailer balls, our 1-7/8 Inch balls are tested for your safety and meet all U.S. VESC specifications.