(image for) Caster; Rigid; 4" x 1-1/4"; PolyU on PolyO (Gray); Plate (2-5/8"x3-3/4"; holes: 1-3/4"x2-3/4" slots to 3"; 5/16" bolt); Zinc; Prec Ball Brng; 300#; Bearing Caps (Item #65089) - Click Image to Close