YAMAHA MPTRMGS Mark Gould Trombita Fúvóka Mark Gould / Trumpet - Professor at the Julliard SchoolRim inner diameter: 17.30mm, Rim contour: semi-flat, Rim thickness: standard, Cup depth: semi-shallow, Throat: 3.88mm, Backbore: standardThis mouthpiece has been designed for a big orchestral sound with enough projection to fill a concert hall. The wide inner rim size and open throat allow a warm broad sound even at fortissimo. But unlike other large mouthpieces it isn't limited to just symphonic playing. The high range is remarkably secure, with centered and accurate intonation, and its rim shape and the balanced amount of air resistance make it comfortable to play for improved endurance. Though an orchestral mouthpiece, it is versatile enough for all-around playing. Control InterfaceMouthpiecesThroat3.88mmDesign/A rchitecture DetailBackborestandardRimRim/Cup Depthsemi-shallowRim/Inner Diameter17.30mmRim/Thicknessstandard