General description New high-quality materials ensure that this Hepa Filter Side Brush Main Brush Kit is well-made, durable, and perfectly matched to your iRobot Roomba i7, i7+, E5, E6, and I3 sweeping robots. Clean accessories keep your home robot at peak performance, reducing the infiltration of dust, pollen, and other allergens into the air you breathe. The contents of the accessories are easily removed and replaced as part of routine maintenance. Technical specifications Material: Plastic Package Contents: 3 sets of main brushes, 8 side brushes, 8 filters, 1 cleaning brush, 1 screwdriver Measurement allowed error: +/- 1-3 cm Usage To achieve the best cleaning and filtering effect, it is recommended to replace the cleaning accessories every 2-3 months, depending on the frequency of use. The HEPA filter can greatly improve air quality and reduce particle size by up to 99.97%, helping to remove household dust, pet dander, and more. Additionally, the pre-filter can help reduce