[Compatible with]: Dust bag for Kobold VK7 vacuum cleaner. Please confirm your device model before purchasing. [Function] The filters are made of high-quality non-woven fabric and activated carbon cotton, which can block 99.99% of particles down to 0.3 μm. Better: The replacement bag has an optimized foldable structure to maintain a larger capacity. The improved flip cover ensures that dust and dirt do not leak out. [Recommendations]: In order to maintain good vacuum cleaner performance, we recommend replacing the replacement bag every 3 months. Type: Vacuum Cleaner Parts Color: as shown Material: non-woven Package Contents: 8 * Dust Bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.