Vestil Cst-Ksm-4X2Mr-R Rubber Rigid Caster 4″ Diameter X 2″ Width 551 Lb. Capacity, Dark Gray/Gold

Made from a soft non-marking rubber, the super muting caster provides one of the smoothest rolls in the market. The thread guard provides additional protection by preventing dust and other particles from reaching the wheel bearings, resulting in longer life and reduced maintenance.