Unique Bargains Square Car Hitch Receiver Pad Between Receivers And Adjustable Ball Mounts Tow Hitches Reduce Rattle Eliminate Noise 2" Black 4pcs : Target
Amazon.com: CURT 13486 - Class 3 Square Concealed Trailer Hitch with 2" Receiver Opening (5000/750 Weight Capacity) : Automotive
Trailer Hitch Ball Mount, Fits 2-Inch Square Receiver, 1 Inch Hitch Ball Hole, 2” Drop, ¾ Inch Rise, and 8-1/2” Length – by Goreks - Walmart.com
Croozer 737/535/Kid/Kid+ Tow Arm (Square Hitch) - CampfireCycling.com