(image for) Caster; Swivel; 4" x 2"; 90A Donut Poly U on Alum; Plate (4"x4-1/2"; holes: 2-5/8"x3-5/8" slots to 3"x3"; 3/8" bolt); Zinc; Sealed Prec Ball Brng; 900# (Item #63350) - Click Image to Close