3″ Solid Elastomer Wheel With 1/2″ Precision Sealed Ball Bearing 2-5/16″ Hub 900Lbs Capacity W-403-PSE Easy Rolling, Shock Absorbing and Extremely Quiet No Flat Spotting Resistant to wide range of chemicals
3″ Solid Elastomer Wheel With 3/8″ Precision Sealed Ball Bearing 1-3/4″ Hub 500Lbs Capacity W-73-PSE Easy Rolling, Shock Absorbing and Extremely Quiet No Flat Spotting Resistant to wide range of chemicals