Tuba mouthpiece, Brass Evolution No. 3. Easy to blow, and the cup diameter is slightly larger than a Bach 24AW, so how about it for stepping up? 【No. 3】 (Comparison products: Conn Helleberg, Perantucci PT83, etc.) Based on the Helleberg model, the throat is large, resulting in less resistance and a bright, clear sound due to smooth airflow. The cup is a medium V-cup. Bright, sharp, and clear. Airflow is good, and it's easy to produce a large volume. Suggested retail price: 24,200 yen (tax included) This is a used item, so no claims and no returns are accepted.