Aldo Velani Balsa Wood Filters are an excellent alternative to the traditional Medico Paper Filters. They are naturally absorbent for a cool, dry smoke. Cylindrical in shape with channels down the side, they collect more of the naturally occurring moisture content while smoking without inhibiting the smoking quality. These fine 6mm balsa wood filters fit any Missouri Meerschaum Filtered Corn Cob Pipe. 30 count. Italy. (shipping weight 0 lbs)