Francois Louis Pure Brass Ligature - for alto sax (hard rubber mouthpieces), brass braces, single top screw for a great comfort of use, solid brass pressure plate provides more resistance and a centred resonance, the longitudinal contact with the mouthpiece by brass resonators and rolls guarantees free vibrations of the ensemble reed/mouthpiece, gold plated, includes plastic cap. The pressure plates set of the original Ultimate Ligature can also be used with the Pure Brass Ligature.