GNRK1500 B&W Turnoverball Underbed Gooseneck Trailer Hitch for Flatbed Trucks - 30,000 lbs fenders while the 2-5/16" ball offers

while the 2-5/16" ball offers 10

BMW 328i xDrive sedan

and they have a notched design to allow easy access to the receiver hitch pin and clip

for easy access to the trunk or rear cargo area

GNRK1500 B&W Turnoverball Underbed Gooseneck Trailer Hitch for Flatbed Trucks - 30,000 lbs fenders while the 2-5/16" ball offersOne piece gooseneck hitch for Flatbed trucks. Hitch welds to the bottom of the truck bed. Requires drilling a 4" hole in truck bed. Install this heavy duty hitch on your vehicle so that you can securely tow your gooseneck trailer. Store the removable ball upside down in the hitch when you aren't towing to get complete bed access. Square ball base won't turn in hitch. Features: Heavy duty underbed hitch lets you tow your gooseneck trailer Complete