The Yamaha 4C Standard Alto Saxophone Mouthpiece is a great piece for beginners. The instrument makes it easy to obtain a balanced clear and focused tone in any octave. Everyone from professionals to beginners likes this mouthpiece. The musical instrument is crafted out of high-quality phenol resin (plastic). The facing is marginally shorter than that of the Custom Series mouthpiece. This mouthpiece is available in several sizes depending on the needs of the player.