CURT part number 40084.
CURT 40084 Stainless Steel Trailer Hitch Ball 7 500 Lbs 2-5/16-Inch Diameter 1 X 2-1/8-Inch Shank

Application Guide:

2-5/16" Trailer Ball (1" x 2-1/8" Shank, 7,500 lbs., Stainless, Packaged)
2-5/16" Trailer Ball (1" x 2-1/8" Shank, 7,500 lbs., Stainless, Packaged)
Fits 2-5/16" couplers and accepts up to 7,500 lbs. GTW
Stainless steel construction for excellent rust resistance
Zinc-plated hex nut and helical lock washer for secure mounting
Features fine threads for superior holding strength
Tested for safety to meet U.S. VESC V-5 specifications

Free Shipping is for continental USA only. If you live in Alaska, Hawaii, or PR please contact us for a shipping quote before bidding.

All items are sold as shown. Since we offer free shipping we will ship the items the cheapest most cost effective way possible.