https://alexnld.com/product/7pcs-replacements-for-irobot-8-9-series-vacuum-cleaner-parts-accessories-main-brushes-2-side-brush-1-hepa-filters-3-cleaning-tool-1/?hilite="9PCS Accessories Parts Main Brush Side Brush Filter Wheel Main Brush Cover Comb For Xiaomi Robot Vacuum Cleaner"