HR Alto Sax Mouthpiece is a hard rubber mouthpiece for professionals and students looking for a traditional yet versatile mouthpiece. The hard rubber from a source in Germany has the look feel and sound of vintage hard rubber that makes the most sought after mouthpieces. Each mouthpiece is faced on a special facing machine and then hand finished. High quality control standards a beautiful warm sound and a nice free blowing feel make the HR mouthpiece a great value.