Bamboo charcoal is environmentally preferable to cotton and superior at
  drawing in moisture, keeping your flute pads dry. 
- Bamboo charcoal outperforms both silk and microfiber in real life
  testing as well as in the laboratory:
  hstts I H (specified method) bs 3449 (ihtm).
- Measuring 25cm x 25cm our flute swabs are perfectly sized to clean the
  inside of your flute. To be used with a flute cleaning rod.
- Clean your flute swab regularly in a cool machine wash and hang to dry
  naturally. Use your flute swab after every session and care for
  the outside of the flute with one of our recycled microfiber cleaning cloths.