Yanagisawa Hard Rubber Alto Saxophone Mouthpiece 5 Yanagisawa steel ebonite (hard rubber) mouthpieces have beautifully proportional facing curves and tip openings Skilled craftsmanship ensures that each Yanagisawa steel ebonite mouthpiece offers reliable uniformity in tone and quality Decades of experience and craftsmanship go into every Yanagisawa saxophone mouthpiece Featuring beautifully proportioned facing curves and tip openings, the steel ebonite (hard rubber) mouthpiece offers reliable uniformity in tone and quality