The side brushes are perfectly matched and the installation is the same as the old parts, which is easy to install, easy to use. The mop cloth has strong and long-lasting cleaning power, which can easily respond to various stains such as footprints on the floor, juice residue, and oil stains. HEPA filter is made of high-strength environmental-friendly materials, which can block most of dust down to 0.3 micrometer. The filter can maintain the cleaning performance of the , while reducing the penetration of dust, pollen and other into the air you breathe Replacement Filter: A dirty filter will greatly reduce suction power. Depending on the vacuuming frequency and amount of dirt cleaned, for best performance, change the filter at least every 3 to 6 months. The powerful cleaning function makes household cleaning more time-saving and labor-saving. It is suitable for a of floors such as ceramic tiles, marble, and wood floors. Type:Vacuum Cleaner Accessories Applicable Models: For 3290 For 3390 For 3490 For 3590 For 3690 For 3790 For 3890 Ultra For 3890 Vital For 3890 Titanium Colour: Material:Plastic Package Contents: 2 * Main Brush 6 * Mop Cloth 6 * Filter 6 * Side Brush 1 * Cleaning Brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.