... Heavy duty type double ball bearing 50mm caster wheel *Wheel dia.100-200mm *Cap.:235-370kgs *Wheel width at 50mm Heavy Duty Fixed Type ... selection.5.Zinc plating and Black Electrophoresis finishing available 6.Caster wheel can be changed to Pvc,rubber ,nylon ,pp ,tpr ... display racks, handcart, transport vehicle ,general usage in market or industrial, etc. 8.Assorted color:Black Tyre with black pp core ...