Vandoren Optimum Bass Clarinet Ligature Plastic CapThe Optimum Ligature, with its choice of three pressure plates has improved sound and reed selection for many players around the world. It offers superb performance and reliability. Precise and rapid tightening is allowed by a unique double track screw mechanism which tightens both sides of the ligature equally 3 interchangeable pressure plates to adjust the sound, whether playing classical or jazz. 1 A rich colourful sonority which produces great