Asymmetric 3C+544 Mouthpiece for Bb Trumpet The "Asymmetric" mouthpiece features an asymmetrical cup. It is famous as a mouthpiece specialized for high notes. This model, "3C+544," seems to be an introductory model within the Asymmetric series. I am selling it because I couldn't use it effectively. I think this is a rare item in Japan. There are some minor scratches due to use around the shank and rim, but it is in overall good condition. It has been cleaned with brass soap and a mouthpiece brush, but please understand that this is a used item before purchasing. *The original box is not included. Please feel free to ask any questions!