This is a great West German quality Wesselwerk turbohead for domestic vacuum cleaner use, a modern build of the turbohead used by quality vacuum manufatures such as Nilfisk, Volta, Vax Numatic, Hako and Pacvac vacuum cleaners which use 32mm accessories.
These are far better than the Chinese made turboheads that are distributed as part of original packages!
Turbo heads are a rotating brush that's powered by the air-flow, not vacuum. Their performance is easily impeded by blocked filters, hair around the bristles, and overfull dustbags.
At the moment, standard postage within Australia is capped at a maximum of $20! Maximise the saving on postage and buy several Puregiene toilet rolls a box of Tissues and some soap or maybe some packets of dustbags, or a hose or a new floor tool, or some other accessories!