COMPATIBLE - Perfectly compatible with Roomba 900 series 990 980 966 960 900 and 800 series 896 895 890 886 880 871 870 866 865 860 850 805 robot vacuum cleaners etc. INNOVATIVE DESIGN - Dual counter-rotating extractors incorporate a durable rubber tread design, which easily grab and break down dirt and debris from the smooth floor. HIGH QUALITY & EFFICIENT CLEAN - Made from high-strength and environmentally friendly materials, removes hair or debris or particles and helps clear the air of dust, allergens and other particles. VALUE KIT - You can get 6 side brushes, 4 filters, 4 rollers Soft rubber extractor roller and 10 free screws, keep your Roomba operating at peak performance. EASY TO INSTALL - The replacement parts are easy to install and save a lot of time. Package Included: 6 x 800/900 Series Side Brushes 4 x 800/900 Series HEPA Filters 4 x AeroForce Extractors 10 x Extra Screws Tips: Replace the rotating side brushes and filters every 3-6 months (depending on the frequency of