General description Brand new, high-quality material, well-made, and well-matched to the original equipment. Clean accessories keep your home robot running at its best while reducing the infiltration of dust, pollen, and other allergens into the air you breathe. To achieve the best cleaning filter effect, cleaning accessories should be replaced every 2 to 3 months depending on the frequency of use. Technical specifications Material: plastic Package Contents: 2 pairs of main brushes, 6 side brushes, 10 filters, 3 cleaning brushes, 1 driver Measurement allowed error: +/- 1-3 cm Usage HEPA filters can greatly improve air quality, reducing particle size by up to 99.97%. Helps eliminate household dust, pet dander, and unpleasant odors from pets, smoke, cooking fumes, and various household products and chemicals.