General description The Accessory Kit is designed for iRobot Roomba models i7, i7+, E5, and E6 series. This comprehensive kit includes essential replacement parts 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 It is recommended to replace the multi-sided rotating brush every 3 months Replace the filter every month Replace the side brush every half month, depending on usage frequency