General description This 2-pack rubber brush set is designed for iRobot Roomba 800 and 900 series robot vacuum cleaners, including models 850, 860, 861, 866, 870, 880, 890, 960, and 980. The multi-surface rubber brushes effectively clean various floor types, ensuring sparkling surfaces even in large areas. One brush moves dirt while the other rotates in the opposite direction to remove and vacuum it away, making cleaning effortless. Technical specifications Compatible with iRobot Roomba models: 800, 805, 810, 820, 825, 830, 840, 850, 851, 860, 865, 866, 870, 871, 876, 877, 880, 885, 886, 890, 891, 896, 900, 920, 925, 930, 935, 940, 945, 950, 960, 966, 970, 975, 980, 985, 990 Material: High-quality rubber Set includes: 2 light gray rubber brushes, 2 dark gray rubber brushes Usage For optimal performance, it is recommended to replace the brush every 2-5 months as part of routine maintenance. Other information