YAMAHA 48L-GP Trombone Mouthpiece A custom mouthpiece finished with luxurious thick pure gold plating. It adopts a new form to achieve a good balance with the instrument. It features a flexible and smooth feel unique to gold plating, allowing for a smooth airflow and a delicate tone. ■ Features: Very well-balanced rim and cup, suitable for all-around use. High level of completion with the ability to meet the advanced demands of professional musicians. ■ Rim Inner Diameter: 25.25mm ■ Throat Diameter: 6.62 【Condition】 Very clean condition. No scratches or stains, and has been polished with a dedicated cloth. * As this is a used item, there may be minor scratches from normal use. Please check the condition in the photos provided as this is a used item.