Hongfa 6Pack 3-Armed Side Brush Compatible with Irobot Roomba 650 770 Replacement Accessories Parts for 650 770 550 760 780 (500 600 700 Series) irobot Roomba Vacuum Replacement Roomba Side Brush Fit Model: iRobot Roomba 500 600 700 Series . Do not compatible with Roomba 645 655 Pet models. Replacement Roomba Brush Advantages : Cleans along edges and other hard to reach places to remove more dust, dirt, pet hair, and debris than a normal brush alone. How to clean the roomba brush : Step 1: Use the corner small screwdriver to remove the screws. Step 2: Remove the brush,remove the hair or debris,and put the side brushes back in place How Often To Clean irobot Brush : Keep your home clean by changing the filters frequently - once every month or two, depending your usage. Replacement irobot Roomba Brush Tips : These brushes are easy to replace as part of routine vacuum maintenance. This Replacement 6-pack includes three easy to install brushes with needed screws-replace one brush now and keep a couple on hand for your next change out. 6 pcs 3 Armed Side Brush 6pcs Free Screws 1pcs Free Cleaning Brush