1. New high-quality materials, well-made, durable, and perfectly matched to the equipment. 2. Clean accessories keep your home robot at peak performance. The contents of the accessories are easily removed and replaced as part of routine maintenance. Also reduces the infiltration of dust, pollen, and other allergens into the air you breathe. 3. To achieve the best cleaning and filtering effect, the cleaning accessories should be replaced every 2-3 months depending on the frequency of use. 4. The HEPA filter can greatly improve air quality and reduce particle size by up to 99.97%. Helps remove household dust, pet dander, and more. 5. Designed for easy scraping and suitable for all kinds of fine surfaces, soft rubber protection ring, prevents bumps and scratches. Self-cleaning function, easy to remove brush dust, just turn gently Color: as shown Material: plastic Package Contents: 1 x non-marking brush 2 x rear filter 1 x filter Only the above package content, other products are not