This Rubber Caster Wheel is 80mm diameter and made of Thermoplastic Rubber with a bonded on polypropylene wheel centre. This bonded rubber castor can take higher loads compared to a standard rubber wheel and the bonding process prevents tyre shear. With all the benefits of a non marking grey rubber wheel this castor is more competitively priced , hard wearing and longlasting. The easy foot operated brake locks the swivel and wheel into position. 80mm Thermoplastic Rubber Castors with Brake