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 including 1 set of dual multi-surface rubber brushes and 4 packs of filters. high efficiency vacuum and 4 packs of edge sweeping brushes. The product is composed & oacute; of materials & agrave; high resistance to ensure the best performance. Filtration technology & agrave; high efficiency - Two rubber brushes are perfectly matched, one for removing dirt; and the other to remove dirt. The side brush can penetrate deep into corners and edges to remove more dirt. and breakage. The clean filter can block 99.97% of dirt, animal dander and other particles as small as 0.3 microns. Easy to use. replace: wash & agrave; the hand & agrave; lukewarm water and let dry completely before using again. Regularly clean and replace parts to improve suction and performance, and extend the life of the robot vacuum. 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. To answer this question; your needs, if you have any questions, please contact us, we promise & agrave; provide quality products; and efficient customer service.