The medium-deep cup and medium-wide rim make this mouthpiece an outstanding choice for medium and large-bore tenor trombones, combining a rich, full sound with a high level of efficiency and playability. - the manufacturer
Features: • 25.4mm cup diameter. • F throat • Standard "C" cup • Semi-flat #4 rim • Standard backbore • Standard small shank • Silver plated
California Residents Only: WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov