WELL, THIS KIT WILL DO IT. THE KIT INCLUDES A 24" FLEXIBLE PIECE OF SPRING STEEL, MICRO FIBER CLEANING CLOTH, AND A SOFT BRISTLE BRUSH. USE THE SPRING STEEL TO FISH THE CLEANING CLOTH AROUND UNDER THE PIANO STRINGS. THE CLOTH CAN BE MACHINE WASHED AND DRIED AND USED OVER AND OVER AGAIN. USE THE BRUSH ALONG WITH YOUR HOUSEHOLD VACUUM TO CLEAN DUST OFF OF THE BRIDGE AND HITCH PINS. (CLOTH COLOR MAY VARY)