Even in a well-maintained grand piano, dust collects on the soundboard below the strings. Cleaning it is difficult and can easily scratch the delicate soundboard finish. We offer a special soundboard cleaning set (3 pieces) from a specialist dealer: three flexible brass rods with a handle at the top and red cashmere at the lower end, which reach the different areas through the strings. A spare strip of cashmere is included. This lets you gently reach almost every spot on the soundboard and catch the dust. Loose dust can then simply be removed with a vacuum cleaner. We have used these sets for a long time and are very happy with how they handle and how long they last.