The accessory kit includes 6 HEPA filters, 6 side brushes and 2 central squeegees.100% compatible with ROOMBA E5, E6, i7, i7+High quality components, long lifespan.1 year spare parts The most complete kit on the market.The Roomba e5 / i7 / i7+ replacement kit contains 6 side brushes , 2 sets of extraction wheels and 6 high quality filters.In order to obtain the best life, spare parts should be cleaned regularly. Filter: Ideally it should be cleaned. after 3 uses. Depending on usage, it can last from 1 to 30 minutes. 3 months.Side brush: should be cleaned after 4 uses. Depending on usage, it can last from 1 to 30 minutes. 3 months. Medium brush: clean after 1-2 times of use. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store