Thank you for viewing. This is a Perantucci PT-88 tuba mouthpiece. I purchased it new and used it a few times, but I no longer need it as I switched to a different one, so I am offering it for sale. It is in beautiful condition with no dents or distortions in the shank, no chips on the rim, and has been disinfected. Since I don't have the original box, I will include a new, unused Galax mouthpiece pouch as a service (see photo 4) and ship it in that. The following is a quote from the website: Cup diameter: 33.5mm Large, deep hemispherical shape with a very rounded bottom Rim width: 7.0mm Both inner and outer rims are rounded. Bore: 8.1mm The PT88 model was originally designed for the low register. However, it was found to be suitable for medium and large bore CC tubas. It works well with any CC or BB♭ tuba and produces a loud, powerful sound. Recommended for advanced players. New price: 18,700 yen If you have any questions or would like to purchase, please leave a comment. #tuba #tuba #mouthpiece