Review on 24 Pack Replacement Parts for iRobot Roomba s9 (9150) s9+ s9 Plus (9550) Wi-Fi Connected Robot Vacuum Cleaner - Extolife (8 Filters + 8 Side Brushes+ 8 Bags) by James Kapihe

Do not buy! Don't listen to reviews that they work well. The brushes just don't fit, are improperly finished, or just don't work properly. My s9 sounds like it nibbles on hardwood floors with these brushes because they are a bit larger. The edge brush is noticeably different and ensures that the vacuum cleaner cannot go over the carpet without pushing, moving or snagging on the carpet. Don't waste money. I know Irobots are ridiculously priced, but so are these aftermarket products.