Amazon.com: ORCISH Trailer Hitch Tri-Ball Mount with Hook & Pin, Trailer Ball Size 1-7/8", 2" and 2-5/16", Fit 2 Inch Hitch Receiver, 2/3 in 1 Ball Truck Hitch, Tow Hitch : Automotive
Adjustable Tri-Ball Hitch With Chrome Towing Balls For 2-1/2 Inch Hitch Receiver | eBay
TowSmart Class 3 5,000 lb. 2 in. Ball Diameter, 1 in. Shank Diameter, 3 in. Shank Length Chrome Trailer Hitch Ball 765 - The Home Depot
1-7/8" x 1" Steel Ball Hitch
Interchangeable Trailer Hitch Ball with 1 7/8", 2" and 2 5/16" Balls | West Marine
Amazon.com: Traworvel Adjustable Trailer Hitch Aluminum 10 Inch Trailer Drop Hitch Ball Mount Fit 2 Inch Receiver 1-7/8" 2" and 2-5/16" Dual Tow Balls with Towing Hitch Pin Locks : Automotive