E.R. Wagner 2F99 2-1/2" Diameter Hard Rubber Wheel Light-Medium Duty Swivel Stem Caster with Side Pinch Brake, 7/16" Diameter X 1-3/8" Length Friction Ring Stem, 175 lbs Capacity Range Delrin Wheel Bearing Mounting Dimensions Friction Ring Stem 7/16" x 1 3/8" Overall Height 3 5/16" Load Rating 175 lbs Caster Finish Zinc