Vandoren CM1407 Bb Clarinet Mouthpiece Black Diamond BD7Characterized by a larger tip opening and volume of sound, while keeping the round and compact sound of the BD5. The Black Diamond Ebonite mouthpiece features a new internal and external design. These developments offer the musician a full sound, rich in depth and color, especially in the upper register of the clarinet. Opening 1 100 mm 133 Facing length long Instrument bb clarinet Series clarinet black diamond mouthpieces