This new tool is made of flexible plastic, covered with a removable sock made of microfiber fabric, which can be washed time and time again. By sweeping the tool you clean the whole soundboard. It will not scratch the varnish. Also suitable for cleaning under the iron frame and removing dust and dirt from the treble strings. It can be used dry or moist. Complete with practical loop for hanging up on the wall. A must for all technicians.