General description The 21 Replacement Kit for iRobot Roomba E5, E6, i7, i7+, I3, I3+, I4, I4+, I6, I6+ and I8 includes essential components to maintain the performance of your vacuum cleaner. This comprehensive set ensures that your device operates at its best, effectively removing dirt and debris from your home. Technical specifications Size: 20 x 16 x 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, E6 series Installation Easy to replace components for optimal operation Usage Replace the multi-surface brush roller every 3 months Replace the filter every 1 month Replace the side brush every 15 months, depending on usage frequency