With the Dyson Spot+Scrub AI Edge Sweepers, you get a replacement side brush for your Dyson robot vacuum. The side brush sweeps dirt away from edges and tricky corners. The brushes guide dirt to the suction brush with ease. This makes it easier for your Dyson robot vacuum to clean corners. You should replace worn side brushes every 3 to 6 months. This way, your robot always cleans thoroughly. You can use the Dyson side brushes with the Dyson Spot+Scrub AI robot vacuum.