Soft brush: Safe and skin-friendly, does not damage the floor, practical and comfortable, you can use it with confidence. Rotation installation: When the vacuum cleaner is running, adjust the rotating brush to clean the floor and remove dust thoroughly. Accessories: Important replacement parts for vacuum cleaners, suitable for V8 V9 V9B V10 V11 K10, easy to install. Regular replacement: Regularly replacing the brush roll ensures that the machine works properly, effectively removes dust, and keeps the floor clean. High-quality material: The brush roll of the vacuum cleaner is made of high-quality material. Quality and durability.