D'Addario H-Ligature & Cap, Bb Clarinet, GoldThe 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 our mouthpiece cap, innovatively made of soft, overmolded plastic. Fits most hard rubber mouthpieces Four points of contact apply equal pressure to the reed Two