Other tools and equipment - he-ruide
Hitch balls come if a various sizes (1 7/8", 2" and 2 5/16").  They also have a variety of shaft diameters (3/4" 1" and 1 1/4") with their corresponding nuts.

Hitch balls come if a various sizes (1 7/8", 2" and 2 5/16"). They also have a variety of shaft diameters (3/4" 1" and 1 1/4") with their corresponding nuts.