Broad CompatibilityThis replacement parts kit Compatible with iRobot Roomba j7 j7+/Plus E5 E6 E7 i7 i7+ i3 i3+ i4 i4+ i6 i6+ i8 Robot Vacuum. This replacement parts work as same excellent performance as the original. What's in the box3(Set) x Roller Brush,8 x Filter,8 x Side Brush,1 x Filter Cleaning Brush, 8 x Screw,1 x Screw Driver. Premium Quality MaterialHigh-Effiiciency Filters Edge-Sweeping Brushes Dual Multi-Surface Rubber Brushes are produced from high quality environmental protection materials.This is a good helper to keep your house truly clean and improve the air quality of your family. TipsFor best results, edge-sweeping brushes and filters should be replaced every 1-3 months.Multi-surface rubber brushes should be replaced every 4-6 months. Quality Satisfaction ServiceYour satisfaction is our greatest wish. We will provide you with the best quality products and services. If you are not satisfied, please feel free to contact us.