COMPATIBLE MODEL: The side brush is only compatible with iRobot Roomba 500 600 700 series. Its precise size allows it to fit your devices perfectly.EXCELLENT CLEANING PERFORMANCE: Made of durable nylon, PP, TPE, the side brush is soft, wear-resistant and foldable.It can penetrate deep into all corners and edges of walls to clean in all directions and capture fine particles and dust, including mold, spores, cat and dog dander, dust mites, pollen andfibers from textiles and carpets.EASY TO INSTALL: Anyone can install the side brush as installation only requires two simple steps.First, turn the screwdriver counterclockwise to loosen and remove the old side brush.Second, align the hexagonal holes with each other, install the screws, and turn the screwdriver clockwise to tighten the new side brush.PACKAGE INCLUDED: 3 x side brushes and 3 x screws to meet your replacement needs.