1. JUNSUNMAY side brush is suitable for iRobot Roomba E&I&J series E5 E6 E7 i3 i3+i4 i6 i6+i7 i7+i8 i8+Plus j7 j7+ vacuum cleaner. 2. Easy to replace and precise installation. When the bristles of the side brush are bent, you can add an appropriate amount of warm water to the cup and soak the bristles for a few minutes to restore them to their original shape. 3. The side brush can penetrate into corners and edges to keep the floor clean and tidy. 4. We recommend replacing the edge cleaning brush every 2 months. Regular replacement will help keep your irobot vacuum cleaner always working effectively. 5. Easy to replace: Equipped with screws, easy to replace and install on the robot vacuum cleaner 6. Packing list: 6 side brushes and 6 screws.