General description Compatible accessory kit for iRobot Roomba i7, i7+, E5, and E6 series. This replacement parts set includes essential components to maintain your vacuum cleaner's performance. Technical specifications Size: 20*16*6 cm Package contents: 2 main brushes, 5 filters, 8 side brushes, 1 screwdriver, 1 small brush, 1 universal wheel Compatibility and accessories Compatible with iRobot Roomba i7, i7+, E5, and E6 series Usage Replace the multi-sided rotating brush every 3 months Replace the filter every month Replace the side brush every half month Replacement frequency may vary based on usage