JUMBO FILTER Brush Kit for iRobot Roomba 600 and 700 Series 760 770 780 3-Armed Side Brushes, Flexible Beater Brush, Bristle Brush Compatible with: iRobot Roomba 600 and 700 Series Vacuum Cleaning Robots Package Includes: 2 Bristle Brush, 2 Flexible Beater Brush, 2 3-Armed Side Brush Specification: High effeciency to reduce dust, pollen and other allergens. And remove dust and pet hair easily Advise: Roomba vacuum parts should be replaced every 2 - 3 months to keep your Roomba operating at peak performance