Cleans floor joints and tight grooves: the rotating brush dislodges stains and trapped dirt along seam lines so the vacuum's suction can remove them, leaving floors cleaner with less manual effort. Reaches edges and narrow areas: designed to assist where the main brush can't, it targets stair step edges and other tight gaps to remove debris that would otherwise be missed. Improves suction efficiency with airflow: rotation generates an airflow that drives dust toward the vacuum inlet, increasing the overall pickup performance without changing your vacuum settings. Pulls hair and dust out from under furniture: fits along the bottom edge of furniture to sweep accumulated hair and dust outward, making it easy for the main brush and suction to collect. Key benefits and performance Solves common cleaning gaps: prevents buildup in joints, along baseboards, on stair nosings, and under low furniture where standard brushes can't reach. Boosts overall cleaning power: the brush's movement augments the vacuum's suction by mobilizing trapped dust and hair. Simple, reliable operation: works in tandem with your vacuum's existing main brush and suction to expand coverage in narrow and edge areas. Practical use scenarios Along baseboards and floor seams: dislodge dirt and debris so the vacuum can pick it up without repeated passes. Stair edges and tread noses: clear dust and crumbs from the step edge where the main brush struggles to reach. Under sofas, beds, and low cabinets: sweep out hair and lint from the furniture bottoms so the main brush can remove it. Functions summary Edge and joint brushing, stairedge assistance, airflowdriven dust movement, and furnitureedge hair/dust extraction — all designed to complement your vacuum's main brush and suction for more thorough cleaning.