Clean brushes help maintain optimal performance of your home robot. Side brushes are easy to remove and replace as part of regular maintenance. High-efficiency filters help sustain cleaning performance while reducing the release of dust, pollen, and other allergens into the air. For best results, replace filters every 2 to 3 months. Compatible with i, and j Series models including i7, i7+, i2, i3, i3+, i4, i4+, i6, i6+, i8, i8+/Plus, j7, j7+, E5, E6, E7. Material: Plastic and rubber. Color: Green and black. Package includes: 4 rubber brushes, 6 high-efficiency HEPA filters, 6 edge-sweeping brushes, 1 filter cleaning tool, 1 screwdriver, and 6 screws. Package content is limited to the items listed; other products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.