Size: 20x16x6cm Product model: i7 i7 and E5 E6 series Package content: 2xmain brush, 5xfilter, 8xside brush, 1xscrewdriver, 1xsmall brush, 1xuniversal wheel 1.Compatibility: The accessory kit is compatible with iRobot Roomba i7 i7 and E5 E6 series, these replacement parts are suitable for your vacuum cleaner. 2.What's in the box: 2 main brushes, 5 filter screens, 8 side brushes, 1 screwdriver, 1 small brush, 1 universal wheel. 3.High performance: Two high-quality rubber brushes are perfectly matched, one for removing dirt and the other for cleaning dirt. The side brush goes deep into the corners and edges to remove more dirt and debris. Replacing the filter can block dirt, pet dander and other particles as small as micrometers. 4.Easy to replace: In order to ensure that your sweeping robot runs with the best performance, it is recommended to replace the multi-face brush roller every 3 months, the filter every 1 month, and the side brush every half a month, depending on your usage frequency.