Brushes wear out so slowly that you don't notice it until one day you collect the fluff on the carpet. My vacuum cleaner works like new again. Installation is quick and easy. Unscrew the 6 screws on the bottom, remove the bottom plate, unwind the tape from the end of the roll and lift the roll. Reverse the process and make sure the new roller is installed with the new display facing you. Vuilala, a new vacuum cleaner.