This is a A-VLE6121 Lower Link Ball, Quick Hitch, Cat III PN: VLE6121Main Description As Following : A-VLE6121 Lower Link Ball, Quick Hitch, Cat III P.N: VLE6121 Category: IIIInside Diameter: 1.472"Outside Diameter: 2.520" Found in Section & Models : Hitch & Drawbar Parts > Lift Link Balls, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Category: III Inside Diameter: 1.472" Outside Diameter: 2.520"