B&W Trailer Hitches Turnoverball Center Kit Model GNRC909B&W Trailer Hitches Turnoverball Center Kit Model GNRC909 #1 selling gooseneck hitch in America. A hitch when you need it, a level bed when you don't. It's the hitch that started it all. Durable powder coat finish Only a 4" hole in the bed Solid, one piece machined receiver socket provides rugged durability In bed Turnoverball release Sturdy steel construction Weight capacity is limited to that of your vehicle