The last hitch ball set youll ever need. Patented O-ring function means no wobble or lost pins. The pin also prevents binding under pressure. Switch from 1-7/8 to a 2 or 2-5/16 trailer hitch ball or vice versa in an instant with this strong, versatile trailer ball. Choose between two or three ball sets to suit your needs. Nickel-plated steel for rust-free performance. Made in USA. Available: 3/4 Shank, 1-7/8 and 2 Balls 1 Shank, 1-7/8, 2-5/16 and 2 Balls Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Towing.