This mouthpiece has a wide inner rim diameter with a large 'V' shaped cup. Tom requires an extremely versatile mouthpiece because he plays in so many different settings: large symphony orchestras, small chamber ensembles, brass groups, and in solo recitals. With this mouthpiece he can play as high or strong as is necessary, and yet can create as rich and full a sound as he wants-in any register. The sound is well focused for clarity and projection, and the playability is responsive and comfortable.