1. Set 1: main brush roll brush x 1 pair + side brush x 7 + 5 x haypa + collision bar x 1 + 2 x screws
2. Set 2: main brush roll brush x 2 pairs + side brush x 6 + harper x 4
3. Set 4: main brush roll brush x 1 pair + side brush x 2 + harper x 3
4. Applicable area: less than 10 square meters
5. Function: clear the cracks and corners of the dust
6. Model: for iRobot Roomba 800/860/870/880/960
7. Material: wear-resistant rubber + PP composite + brush