1. It is made of relatively good materials, well-crafted, durable, and highly compatible with the device. 2. The cleaning accessories can help the household robot perform better. As part of daily maintenance, the accessories can be disassembled and replaced. They can also reduce the infiltration of dust, pollen, and other allergens into the air you breathe. 3. To achieve relatively good cleaning and filtering results, the cleaning accessories should be replaced every 2 - 3 months depending on the frequency of use. 4. It can improve the air quality to a certain extent, with a particulate matter filtration efficiency of up to 99.97%. It helps to remove household dust, pet dander, etc. 5. It can help reduce odors. The pre - filter can help reduce unpleasant odors generated by pets, smoke, cooking fumes, and various household products and chemicals. 6. Color: Light blue 7. Material: Fiber 8. Package contents: - 6 pieces of rags Only the above package contents are included, and no other products are included. 9. Note: Light reflection and different displays may cause slight differences between the color of the items in the picture and the actual product. A measurement error of +/- 1 - 3 cm is allowed.