Clear plastic.
Faxx Clear Plastic Tenor Trombone Small Shank Mouthpiece 6.5AL - Made in the USA
Faxx Black Plastic Trumpet Mouthpiece 7C - Made in the USA
Faxx Black Plastic Trumpet Mouthpiece 5C - Made in the USA
Faxx Black Plastic Trumpet Mouthpiece 3C - Made in the USA
Faxx Black Plastic Trumpet Mouthpiece No.3C with Brushes and Steri-Spray
Faxx Black Plastic Tuba Mouthpiece 24AW - Made in the USA
