H-Ligature and Cap for Bb Clarinet - Gold The H-Ligature was conceived as a retro version of the famous Harrison ligature used by many of the worlds greatest saxophonists and clarinetists. H-Ligatures make use of a four-point system which applies equal pressure to the reed and feature a two-screw inverted design. Each comes with Rico s signature mouthpiece cap innovatively made of soft overmolded plastic. Offered in both gold-plated and silver-plated models Available for the full range of clarinets and saxophones