Amazon.com: OPENROAD Adjustable Trailer Hitch Ball Mount Fits 2-Inch Receiver, 2" Tow Balls 7500lbs, 9-1/2" Drop/ 8-1/4" Rise Drop Hitch, Tow Hitch for Heavy Duty Truck with Stainless Steel Pins and Lock :
Triple-Ball Mount Adjustable 6 in. Drop/ 4 in. Rise Hitch
CURT 45812 Adjustable Ball Mount (2 Shank, 1 Ball Hole)
B&W TS10065BMP B&W Tow & Stow 2-Ball Mount 2" X 2 5/16" - 4 1/2" Drop - 5 1/2" Rise
Towsmart Adjustable Ball Mount 1" Hole With Clip, 5000 lb | Meijer