Original iRobot Roomba left side wheel.
Cannot operate simultaneously with blue wheels. If your robot has two blue wheels and only one breaks down, you can't change it to a gray one. The two wheels must be the same color.
All iRobot Roomba models of the 500 series, 600, 700, 800, 900, series e, series i, Series s.
For example 680, 682, 966, 980, 866, i7, e5, s, etc.
How to change the wheel to a Roomba