Bach K3511C Megatone Trumpet Mouthpiece, Silver Plated, 1C 17.00mm Go to amazon.com Related posts Top 14 best trumpet mouthpiece 1c: Which is the best one in 2022? Feature1CCup: 17.00mmCup: 17.00mm Shape: Medium Wide DescriptionBach K3511C Mega tone Trumpet Mouthpiece, Silver Plated, 1C Cup: 17.00mm, Rim Shape: Medium Wide