SEBO K series ultra bags make sure the dust you collect stays trapped for cleaner home air quality. Each package comes with 8 three layer paper bags. These SEBO HEPA style dust bags are of generous size so consumers can go longer between changes and are also made of durable cloth material for enhanced durability and filtration. Each bag is armed with a plastic locking system to funnel dust in the opening and also a plastic cap for a cleaner disposal process. Part # 6629AM