The Traditional B45 is part of the industry-standard clarinet-mouthpiece range from Vandoren, and has a traditional beak design.
The difference between Traditional and Profile 88 mouthpieces is in the exterior angle of the beak. The musician is free to choose the model which suits his or her purpose in terms of best playing position, easiest sound projection, greatest playing comfort, and the most controllable and precise articulation.
The B45 is the universal mouthpiece. With an intermediate tip opening and a medium-long facing, it is appreciated by most clarinetists. Tip-opening: 119.5 (1/100 mm); Facing length: medium-long.