Tuba Mouthpiece Bach 18 Purchased in 2019 Retail Price: ¥20,240 Selling because I no longer need it. Features a smaller inner diameter and a wider rim, making it an all-rounder for playing! It gives the impression of getting more volume than a YAMAHA 67C4! Perfect for beginners and junior high/high school students working hard in their club activities! Available for immediate purchase!