CURT Over-Bed Folding Ball Gooseneck Hitch, 30,000 lbs, 2-5/16-Inch Ball Model 61052CURT Over Bed Folding Ball Gooseneck Hitch, 30,000 lbs, 2 5 16 Inch Ball Model 61052 The CURT folding ball gooseneck hitch is an innovation in gooseneck technology, offering a unique solution to the problem of a misplaced or stolen trailer ball. Rather than having a fixed trailer ball that obstructs your truck bed space or a removable ball that locks into place using a set of pins, a folding ball gooseneck hitch features a permanently attached ball