Nilfisk SM800 and ALTO Floortec 480M Pedestrian Sweeper Long Transmission Belt
These are circular in profile and translucent.
This is the part number and the price for a single belt. THEY are sold EACH.
As it's light, maximise the saving on postage and buy some of the related parts below, such as the side brooms or the whole set of belts.
At the moment, standard postage within Australia is capped at a maximum of $25