Nilfisk SM800 and the ALTO Floortec 480M Sweeper Long Transmission Belt. These are also translucent. This is the part number and price for a single belt. They are shown, on the top left of the photo.
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!
At the moment, standard postage within Australia is capped at a maximum of $20!