Muvtons Premium Polyurethane treaded wheels 93° ±3° Shore A, firmly bonded to precision machined cast iron cores offer low rolling resistance, smooth & noiseless running, are non-marking and floor protective. These wheels possess high abrasion & cut resistance and are resistant to tearing. Tested & Guaranteed against bond failures. Wheel Bearing Options: Sealed precision ball bearings, tapered roller bearings or roller bearings. Colour: Light Brown. Temperature range : -20° C to +85° C. Tread Options :Anti-static ; conductive wheels are available.