Perfect fit: compatible with iRobot Roomba series E5 (E5134) E6 (E6198) E7 I series i7(7150) i7+ i7 plus(7550) i1+(1552) i4+(4550 4552)i3+(3550) i6+(6550) i8+ (8550) j7 This set works just as well as the originals, precise fit and easy to install. Easy Replacement: Snaps into place for quick, effortless replacement without tools. Made of high quality polycarbonate, durable filter and side brush. Triple effective filtration technology: two high-quality, tangle-free anti-debris brushes are perfectly suited to catching food, hair animals, etc. The innovative side brush can penetrate deep into corners and edges to remove more hair debris. The clean filter can block other particles as small as 0.3 microns. Easy to replace and clean: It snaps into place and can be replaced quickly and easily without tools. As part of routine maintenance, the side brush is easy to remove and replace. Replace the filter and side brush every 2-3 months to maintain cleaning performance. It is recommended to replace the multi-sided rubber brush every 6 months. Premium Material: Made of environmentally friendly materials with high strength and better protection of your family's health. Our replacement brushes and filters will be your favorite option when it comes to keeping the house clean for your loved ones