This is the 40cm diameter Provac soft white nylon bristled scrubbing brush it's for carpet shampooing and general purpose buffing and scrubbing of all surfaces.

This configuration is often used with Rotobic and Fantovac and Pacvac and Polivac products especially the

It fits on very quickly to the Provac  pictured below it, which is fixed on to the drive on the rotor of the polisher or

At the moment, standard postage within Australia is capped at a maximum of $30 So maximise the saving on postage and buy some other accessories in the related items below!