The Griego Nouveau series was created to give players the flexibility of a lighter mouthpiece. It provides a width of sound and wider partial feel for a natural playing experience. Every tone and timbre can be manipulated, making the Nouveau a very expressive mouthpiece. The Griego 5 has a more rounded rim and slightly deeper bowl than a standard 5G. It is consistent throughout all registers and has plenty of middle register overtones. This mouthpiece was designed with the principal trombonist in mind and also works great on .525 bore instruments. - the manufacturer
Specs: • Cup Diameter: 25.50mm • Throat: 0.232 inches