General description New high-quality materials ensure that these accessories are well-made, durable, and perfectly matched to your iRobot Roomba 880, 860, 870, 871, 980, and 990 models. Clean accessories help maintain your home robot at peak performance, preventing dust, pollen, and other allergens from entering the air you breathe. The contents of the accessories are easily removed and replaced as part of routine maintenance, and it is recommended to replace them every 2-3 months depending on usage frequency. Technical specifications Type: Sweeper Accessories Color: as shown Material: plastic Package Contents: 3 pairs of main brushes, 12 side brushes, 12 filters, 1 cleaning brush, 1 universal wheel, 1 screwdriver Measurement allowed error: +/- 1-3 cm Usage The HEPA filter can improve air quality and reduce particle size by up to 99.97%, helping to remove household dust and pet dander. Pre-filters help reduce unpleasant odors from pets, smoke, cooking fumes, and various household