This professional ligature is one of the most popular on the market for many reasons:

• Quick and symmetrical tightening with a unique double-track screw mechanism.
• 3 interchangeable pressure plates to adjust the sound.
• Expression with freedom.

Here's the 3 plates and their differences: 

Plate n°1 : A rich, colorful sonority wich produces great resonance. Pressure along the fiber of the reed facilitates an unbelievable blowing ease. Incredible ease of articulation.

Plate n°2 : A more compact, centered sonority smooth even sound extraordinary blowing ease.

Plate n°3 : The reed vibrates in total freedom, producing a very flexible sound Greater ease of expression.