Faxx Black Plastic Tenor Trombone Mouthpiece No.6.5AL. This is one of the most popular sizes of Trombone Mouthpiece. This small shank mouthpiece will fit most. 500. 508 and. 525 Tenor Trombones. This will not fit large bore and Bass Trombones as they use a large shank mouthpiece, which I also have available.
