Denis Wick Tuba Mouthpiece 1L This mouthpiece came with the tuba I bought. I used it a little, but I bought a new mouthpiece, so I stopped using it and have been storing it. The following is an excerpt from the introduction site: The "Classic Series" with its flat rim and unique V-cup shape is perfect for concert bands, allowing for a rounded, deep tone. It is also popular with British-style brass band players. Silver-plated finish Retail price: 33,000 yen Extra deep cup Cup inner diameter: 32.50mm Rim width: 7.48mm Bore size: 8.43mm Mouthpiece for B♭ tuba. Large diameter, especially with a deep cup for a deep sound. For those with a strong embouchure. Thank you for your consideration.