A. The product is made with good materials, well - crafted, durable and matches the equipment well. B. Clean accessories can protect your home robot. During routine maintenance, the contents of the accessories can be removed and replaced. They also reduce the penetration of dust, pollen and other allergens into your air. C. To achieve a better cleaning and filtration effect, the cleaning accessories should be replaced every 2 - 3 months, depending on the frequency of use. D. The Hepa filter can improve air quality and reduce particle size to a certain extent. It helps remove household dust, pet dander and more. E. Say goodbye to odors. The pre - filter can help reduce unpleasant odors from pets, smoke, cooking fumes, and household products and chemicals. F. Color: As shown G. Material: Plastic H. Package Contents: 10X Filtrastik I. The above are the package contents, other products are not included. J. Note: Due to light reflection and different monitors, the color of the item in the picture may be slightly different from the actual color. The measurement allowance is +/- 1 - 3 cm.