Easy-to-set-up silver-plated ligature with plastic cap for Bb clarinet from M/O series that combines the lightweight construction of the legendary Vandoren Masters ligature with the highly efficient tightening of the Vandoren OPTIMUM ligature and allows an optimum vibration of the reed and a crisp articulation. It offers quick and symmetrical tightening with a unique double-track screw mechanism with only two small contact points on the reed.