We use only genuine, authentic Hard Rubber so the HR* Series has the look, feel and sound of the vintage hard rubber sax mouthpieces that have always been the most highly sought after. The mouthpieces are faced on a special facing machine and then meticulously hand finished and play tested. The HR* Baritone Sax mouthpiece is manufactured from solid bar stock of hard rubber on a 5 axis CNC Mill and then meticulously hand finished and play tested. - the manufacturer
Three Goals in Creating the HR* Series of Saxophone Mouthpieces