Thank you for viewing. ■ Brand: Perantucci ■ Model Number: PT-84 ■ Shank: Normal Shank ■ Finish: Silver Plated ■ Cup Inner Diameter: 32.0mm ■ Rim Width: 8.0mm ■ Throat Bore: 8.0mm ■ U Cup / Deep Tuba mouthpiece For B, C tuba mouthpieces This mouthpiece was created through the collaboration of two world-renowned tuba players, Daniel Perantoni and Robert Tucci, who spent many years seeking a well-sounding mouthpiece suitable for all types of players. This item is brand new and unused. Thank you for your understanding and purchase.