- LOTUS Trumpet 3M Brass Gen3; mouthpiece for trumpet; cup diameter: 16.60 mm; cup depth: medium; bore: 3.9 mm; material: brass, LOTUS Golden coating: hypoallergenic, scratch-resistant and does not tarnish; powerful, full, warm sound and response; suitable for beginners, piccolo trumpet and musical theatre. EUR 232.00 - See more - Buy online