Vandoren clarinet mouthpieces have defined the ideal clarinet sound for decades. With impeccable intonation, crisp and accurate articulation, and unrivalled response, Vandoren clarinet mouthpieces are preferred by professional clarinettists around the world. The same technical characteristics as the B44, but with a wider tip rail. It produces a compact and centred sound. Tip opening: 1.38mm. Facing length: Medium-Long. Standard profile beak.