Applicable Models - Compatible with iRobot Roomba i7 i7+ i3 i3+ i4 i4+ i6 i6+ i8 i8+/Plus E5 E6 E7 vacuum cleaner set. These replacement parts are perfect for your vacuum cleaner. Economical set includes 1 set of dual multi-surface rubber brushes and 4 packs of high efficiency vacuum filters and 4 packs of edge sweeping brushes. The product is made of high-strength materials to ensure the best performance. High-efficiency filtration technology - Two rubber brushes are perfectly matched, one for removing dirt and the other for removing dirtiness. The side brush can reach deep into corners and edges to remove more dirt and debris. The clean filter can block 99.97% of dirt, pet dander and other particles as small as 0.3 microns. Easy to replace: hand wash in water lukewarm and allow to dry completely before using again. Clean and replace parts regularly to improve suction and performance, and extend the life of the robot vacuum cleaner. For best results, please replace the edge cleaning brush and filter every 2-3 months. Multi-Surface Rubber Brushes should be replaced every 6 months.