- Saves bad reeds by improving their playability.
- Removes fuzzy sounds from bad reeds.
- Gives warmest tone from weak reeds.
- Stabilizes thin canes thus giving a more stable sound.
- Increase reed life at least twice as long.
- Are particularly recommended on good dying reeds.
- Helps also to ensure saving reeds for concert.
- Gives a more round sound through all registers.
- Helps give a better grip to the ligature.