DR Series Castor; Pressed Steel Bracket with Blue Rubber Wheel.         

Resilient/Elasticated rubber tread castor wheels overcome some of the above problems with natural rubber castors.  These castors do not mark floors or develop flats after being left to stand for a while.   The load carrying capability of this rubber castor is allot higher than normal rubber castors.  These castors also offer a more silent running so making them particularly useful in the entertainment industry etc. Softer tread castor tyres offer good all round performance.