The side brushes are perfectly matched and the installation is the same as the 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 performance, change the filter at least every 3 to 6 months. Strong suction and sweeping of fine dust, hair, debris and other daily ground garbage. With the anti cleaning design, it is clean, less maintenance and more worry free. Applicable Models: For 4090 For 4490 For 4690 For 5090 For 5490 For 6090 Material: plastic colour: Blue+white Package Contents: 1 x roller Brush 1 x Main Brush 4 x Mop Cloth 4 x Filter 4 x Side Brush 1 x 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.