Self-closing collar latches close when removed from vacuum, ensuring that dust and dirt are never released back into the air that has been capturedThese dust bags largely trap 99.97% of fine dust, dirt and debris, preventing air recirculation in your home, as well as improving vacuum performanceWhich are more durable and in use than a standard paper vacuum bagThese replacement vacuum vacuum bags and filters are designed to be to fit vacuum S241 - S256i, s290-s291, S300i - S399, S500 - S578, S700 - S758, S4000, S6000, C1, C2, complete C1Compatible with: Fit for canisters vacuum models S241 - S256, s290-s291, S300i - S399, S500 - S578, S700- S758, S4000 - S4999, S6000 - S6999, S4, S6, S6, C1, C2, complete C1 replaces part #10123220Regularna replacement of vacuum bags and filters will improve the overall performance of the vacuum cleaner, It is recommended to replace for 2-3 months or during use. Steps to change vacuum bag:1. Lift the release button and open the dust compartment cover upwards until it clicks into place.2. Grasp the self-locking collar and remove the vacuum bag from the handle.3. Insert the new dust bag into the blue handle as possible, and do not pull the bag apart when removing it.4. Spread out the dust bag in the dust chamber if possible.5. Finally the dust compartment lid until it clicks into place, be careful not to get the bag caught in the lid. Color: White + Red Material: Non-woven Fabric Size: Bag Size: 27x16.8cm Package Contents: 10 * Vacuum Cleaner Bags10 * Motor FiltersOnly the above package content, other products are not included. Note: The light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.