TowSmart Up to 14,000 lb. 1-7/8 in., 2 in, and 2-5/16 in. Ball Diameters Adjustable Trailer Tri-Ball Mount with Hook 7431 - The Home Depot
Amazon.com: Adjustable Trailer Hitch, Fits 2.5 Inch Receiver, 8 Inch Drop Hitch, 18,500 LBS GTW, Aluminum Forged Shank, 2 Inch & 2-5/16 Inch Balls, Towing Hitch for Heavy Duty Truck with Double Lock Pins : Automotive
Curt Manufacturing Towing Starter Kit with 2 Inch Ball (2 Inch Shank, 7,500 lbs., 4 Inch Drop) - Walmart.com
1-7/8" and 2" Double Ball Hitch Mount
Dual Ball Trailer Hitch Ball Mount - Up To 6000 lb - TowSmart
TowSmart® Class III 5,000 lb 2" Ball Mount Trailer Hitch (3-1/4" Drop) at Menards®
2" Drop TRAILER HITCH w/ 1- 7/8" & 2" DOUBLE BALL TOW MOUNT TOWING 3/4" RISE III – EconoSuperStore
CURT 45651 Multi-Ball Mount (2-1/2 Hollow Shank, 1-7/8, 2 & 2-5/16 Black Balls)