"Super tough Fairbanks Rigid Polyurethane Mold-On Caster withstands severe shock and overloading. Precision tapered center roller bearing assures exact raceway alignment for easier swiveling. Green powder-coated finish. Wheel Diameter in. 10, Finish Type Green, Overall Height in. 12 1/2, Wheel Width in. 3, Casters qty. 1, Foot Brake No, Mount Height in. 12 1/2, Capacity lbs. 2,800, Material Type Steel, Wheel Type Polyurethane/semi-steel core, Bearing Type Roller, Top Plate Dimensions L x W in. 7 1/4 x 6, Caster Type Rigid, Bolt Hole Spacing 6 1/8 x 4 1/8. Heavy plate steel with heat-treated ball races, hardened bearings and sealed raceways 1in. king bolt welded to the top plate will not stretch or break loose Extra-heavy top plate and structurally formed legs can withstand severe shock and overloading Rugged polyurethane wheels 2800-lb. capacity"