This 200mm swivel rubber castor is made of a strong zinc plated housing which ensures the castor is robust enough and suitable for a variety of environments. The castors, with the non marking blue rubber wheel, are suitable for trolleys, equipment and general purposes. The non marking blue rubber wheel with roller bearings means the castor is quiet to move, will not mark the floor and will carry significant loads of 400kgs per caster wheel. 200mm Industrial Castors with Blue Rubber Wheel