Traditional StyleThe beak on the CM307 Mouthpiece is of a traditional design, meaning that the taper of the mouthpiece happens closer to the edge of the mouthpiece and at a greater angle. This has been a tried and tested method of mouthpiece design for many years and is a popular style chosen by many of the great artists.B40 DesignThe B40 mouthpiece has a design which is very similar to the standard B45, which is Vandoren's best selling mouthpiece. The B40 however has a slightly wider tip rail, which gives it a great compact and centered sound. This means that the clarinetist has a wide spectrum of colours and timbres available as well as excellent projection and response. The mouthpiece has been designed to use softer reeds without sacrificing the sound quality of a stronger reed.For more information on Vandoren Clarinet Mouthpieces, please find the PDF below. Can't find that specific mouthpiece online? Please contact us for more information.Features/SpecificationsTip Opening: 1.195mmFacing Length: Medium LongSuitable For: Bb and A ClarinetRecommended Reed Strength: 2 3