Silver-plated ligature for Bb clarinet from Optimum series that features a plastic cap and three interchangeable pressure plates with different pressure points that provide different timbre. It offers quick and precise tightening and expression with freedom. One adjustment screw that is threaded through both posts of the ligature ensures even pressure on the reed. As a result, user will find more of the reeds will perform to his expectation. Pressure plates and cap are available as replacements.