The stainless steel wires of the Original Ultimate have been replaced by a Brass Brace. Its suppleness makes it fit your mouthpiece smoothly.The tightening is assured by a single Top Screw for a great comfort of use.The contact with the reed is assured by a Solid Brass Pressure Plate providing 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.All this produce a deeper tone with a well balanced resistance and a great projection.The Pressure Plates Set of the Original Ultimate Ligature can also be used with the Ultimate Ligature Pure Brass.