Perfect Fit - The spare parts are compatible with iRobot i7 i7+ i3 i3+ i4 i4+ i6 i6+ i8+ j7 j7+ / Plus E5 E6 E7 vacuum cleaner, very good and easy to clean. install.Economical set - includes 2 multi-surface rubber brushes, 6 HEPA filters, 6 side brushes, 6 cleaning base bags, 1 cleaning brush and 1 screwdriver. If the side brushes are bent due to transportation, simply soak them in warm water for a while to restore them.High performance side brushes may break. Go deep into corners and edges to remove more dirt. and debris. The HEPA filter can block 99.97% of particles as small as 0.3 microns. Each bag has; dust can hold 30 trash cans and debris. Easy to handle, no need to dust.Maintenance-In order to ensure that your vacuum cleaner is running at its best performance, it is recommended that you clean it. to replace the multi-surface brush roll every 3 months, to replace the filter every 1 month and to replace the side brush every six months, which also depends on your frequency of use .In response to your needs - If you have any questions about robot vacuum cleaner spare parts, please contact us, we are committed to helping you. provide quality products superior quality and efficient customer service.