1. Applicable area: 101-150 square meters 2. Applicable model: suitable for iRobot 8 series/9 series 3. The bristles are moderately soft and hard, and the cleaning force is strong 4. Hypa filter, good filterability 5. Real machine mold opening, high adaptability 6. Weight: main brush is about 38g/pair, side brush is about 8g, filter is about 35g, universal wheel is about 55g