Caster; Swivel; 8 x 3; PolyU on Cast (Green/Bk); Plate (4-1/2x6-1/4; holes: 2-7/16x4-15/16 slotted to 3-3/8x5-1/4; 1/2 bolt); Sealed Prec Ball Brng; Kingpinless (Item #66557)