800+ perfect cleanings. Perfect for cleaning male MPO trunk assemblies. Microweave cleaning ribbon is extraordinarily effective for removing dust and residues. No shutter to hide the cleaning ribbon; the open cleaning window makes it easy to implement wet-dry cleaning which eliminates electrostatic charge, improves cleaning results. Visible ribbon supply spool makes it easy to determine when cleaning ribbon is running low. Manual advancement of the ribbon gives the operator control; makes it easy to clean multiple end-faces with the same ribbon. Shutters on traditional cassettes only cover the used section of the cleaning ribbon and do not prevent dust or moisture cross contamination. Cleaning costs at least 50% lower than traditional cassette fiber cleaning tools.