Highly compatible wheel accessories for iRobot Roomba 500 600 700 800 900 series 529 595 650 670 760 780 880 870 980 Improved design: The improved bearing design prevents the wheels from falling off due to wear. The bearings allow the wheels to spin more smoothly and reduce the amount of debris that affects functionality over time. Low noise: The wheels are made of high-quality rubber and are particularly quiet and smooth when moving on the floor. Easy to install: No tools required, easy to install. If your front wheels are not spinning, squeaking, or falling off, you should clean them to maintain the best performance of your wheels.