The Benge 12C trombone mouthpiece is a durable metallic mouthpiece designed for soprano trombones. This silver plated mouthpiece features a small shank and medium cup depth, making it suitable for both beginner and advanced musicians. With a 3.6mm throat diameter and 17mm rim diameter (interior), this mouthpiece offers a clear and bright sound for your trombone performances. Perfect for those looking for a high-quality and reliable mouthpiece to enhance their musical experience.