Convert-A-Ball 20,000 lb. Cushioned Gooseneck Trailer Coupler Rubberneck Hitch is a coupler designed for gooseneck trailers. Fully cushioned up and down, forward and back, 360 degrees all ways. The rubberneck will take the shake, rattle and roll out of gooseneck towing.   Rated for 20,000 lbs. 2-5/16" Ball Coupler Built in Security Locking Feature Ball Guides for Easy Hookup Available in 4" Round Tubing to Fit Most Trailers with Set Screws Receives Padlock for Security (padlock sold separately) Dimensions: Overall Length: 25.938" Pipe OD" 4" Rated V-5 SAE J-684 standard. Cut-away view of the coupler shows the polyurethane cushions

Item # is CBCG $149.90 + S&H