VINCENT BACH Trumpet Mouthpiece 5C This is a mouthpiece from BACH, a standard trumpet manufacturer. The size is 5C. The 5C mouthpiece can be used for any genre. Personally, I often used it in a brass band. It is in very good condition, but please check the shank for some plating wear and stains. There are no scratches or dents that would interfere with playing. Thank you.