Size: 20*16*6cm Product model: i7 i7+E5 E6 series Package contents: 2*main brush, 5*filter, 8*side brush, 1*screwdriver, 1*toothbrush, 1*universal wheel 1 . Compatibility? t: Accessory set compatible with iRobot Roomba i7 i7+ E5 E6 series. These replacement parts are suitable for your vacuum cleaner. 2. Package contents: 2 main brushes, 5 filter nets, 8 side brushes, 1 screwdriver, 1 small brush and 1 universal wheel. 3. High performance: Two high-quality rubber brushes are perfectly matched, one for removing dirt and the other for cleaning. The side brush reaches corners and edges to remove more dirt and debris. Replacement filters keep out dust, pet hair and other micron-sized particles. 4. Easy to replace: To ensure that the robot sweeper is in the best working condition, it is recommended to replace the multi-side brush every 3 months, the filter every 1 month and the side brush every half month. Sold by Company