Review on Amyehouse Tangle-Free Debris Extractor Set & Filter 3-Arm Brush for iRobot Roomba 800 & 900 Series (805, 860, 870, 871, 880, 890, 960, 980, 981, 985) - Vacuum Replacement Kit by Nicole Brown

They fit my Roomba perfectly. I call him Eustace. When I started noticing that Eustace wasn't doing his job anymore, I started changing parts of him. I ran out of spare parts that came with the starter kit pretty quickly. It really helped him walk well again. It sucks, parts break pretty quickly with constant use (I run it about 4 times a week) but this set should last a long time. I love my little Roomba and it does a great job cleaning floors and freshening the air. If you find that your Roomba is not working properly, try replacing parts as well.