The side brush is designed to sweep the edges of rooms, sweeping dust into the path of the main brush and vacuum system Made of silicone, it cleans deeply without marking furniture or walls and lasts longer than nylon side brushes. A tangle-free design reduces jams caused by tangled hair Optimized corner cleaning accelerates the side brush to 330 RPM when cleaning edges for a more thorough clean. Away from the edges, the side brush slows down to 130 RPM, allowing it to continue guiding dirt while preventing it from spilling dirt into clean areas Compatible Models: Roborock S5 S6 T6 E2 E35 Package Contents: 5 x Side Brushes