Standard Series clarinet mouthpieces are made from a durable plastic that will stand up to years of regular playing. The 4C size was designed by Yamaha so that even a beginner can make a terrific sound.
Would Recommend for Intermediate to Advanced Players
This mouthpiece produces a darker, rich tone which is what I prefer. Of course the reed brand can also affect the sound. I use Van Doren reeds. But the clarity of the mouthpiece is also very appealing.