Description Applicable Models - Compatible with iRobot Roomba i7 i7+ i3 i3+ i4 i4+ i6 i6+ i8 i8+/Plus E5 E6 E7 vacuum cleaner set. These spare parts are perfect for your vacuum cleaner. Value set includes12 products in total, including main brush * 2+filter * 4+edge brush * 4+screwdriver * 1+small brush * 1. 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 dirt. The side brush can reach deep into corners and edges to remove more dirt and debris. The clean filter can block of dirt, pet dander and other particles as small as 0.3 microns. Easy to replace: hand wash in warm water and allow to dry completely before reuse. 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. To meet your needs, if you have any questions, please contact us, we are committed to providing quality products and efficient customer service.