[Easy Installation] The side brushes are perfectly matched and the installation method is the same as the parts, which is easy to install, easy to use. [Mop Pad & Hepa Filter]Microfiber mops are absorbent and can easily remove a variety of stains. The HEPA filter can filter 99% of dust, pet hair, etc. After washing and drying with water, it can be reused. It is recommended that you replace spare parts every 2 to 3 months depending on the frequency of use to keep the machine running at its best performance HEPA filter is made of good eco-friendly materials, delicate and delicate, and matches the equipment, to optimal performance and a healthier lifestyle. HEPA filter is easy to remove and replace as part of routine maintenance, matching with the equipment, the filter element can be removed and flushed for easy maintenance, washed with warm water and reinstalled after it is completely dry. Compatible models: For X40 Pro Ultra Colour:As Shown Material:plastic Package Contents: 4 x Dust