These 200mm braked castors are made of a zinc plated housing which ensures the castors are robust enough and suitable for a variety of environments. The swiveling castor, with the non marking 8 blue rubber wheel and a brake is suitable for trolleys, equipment and general purposes. The non marking blue rubber caster wheel with roller bearings means these castors are quiet to move, will not mark the floor and will carry significant loads of up to 400kgs each. The foot operated wheel brake simultaneously brakes both the swivel castor head and the wheel.