Dreame Accessories Kit for L20 UltraSide Brushes to Sweep CleanThe 3 armed side brushes clean up the dust in corners and concentrates the dust and debris toward the suction port during rotation, making cleaning more effective and thorough. Deep Cleaning, Tangle Free Main BrushThe robust rubber main brush stirs up underlying dust in carpets, grabs dirt off of hard floors, and prevents hair tangling to provide effective debris pickup on any type of floor. High Precision FiltersAdvanced