E.R. Wagner CSRT-E092-01 3" Diameter Solid Polypropylene Wheel Light-Medium Duty Rigid Plate Caster, 210 lbs Capacity Range Plain Wheel Bearing Mounting Dimensions 1 1/16" x 3 15/32" to 1 3/16" x 4" Overall Height 3 3/4" Load Rating 210 LBS Caster Finish Zinc