LOTUS Trumpet Trumpet 9L Brass Gen3; mouthpiece for trumpet; cup diameter: 16.0 mm, comparable to Bach 10 1/2C, GR 62MX, Monette BB, Reeves 40C, Schilke 6C, Warburton 7MD and Yamaha 8C4; cup depth: medium (standard C-cup); bore: 3.7 mm; material: Brass (full and round sound and response), LOTUS gold plating: hypoallergenic, scratch-resistant and does not tarnish; full, rich sound and variety in the upper register; suitable for wind ensemble and classical-style orchestral playing, as well as jazz soloists.