Universal for iRobot Roomba 800 Series/900 Series 870 880 900 sweeper 

When the sweeper works, the side brush adjusts and rotates to sweep the dust into the dust box

The innovative brush reaches deep into corners and edges to remove more dirt, dust and debris

It can be easy to remove and replace as part of routine maintenance

Replacement cycle usually the replacement period is 3-6 months

Observe whether the brush is worn off and whether the edge brush is deformed. Determine whether to replace