For the discerning player. This is a trombone mouthpiece case made by 【PROTEC (Pro-Tec)】, an American wind instrument case brand trusted by professional musicians around the world. Imported from the United States in June 2025, I am selling this because I have changed instrument cases. ⭐️ A standard for performers, "trusted just by having it" ⭐️ Players seen on stage and on site are all top-class ⭐️ The design that can hold 4 mouthpieces is proof of someone who seriously selects their sound ──It sets itself apart from inexpensive mouthpiece pouches and naturally gives the player a sense of trust. ✔ Hard body × brushed interior perfectly protects your precious mouthpieces ✔ Ideal for those who switch between multiple mouthpieces, regardless of orchestra, wind band, or ensemble ✔ Design that refines the actions around your instrument Shipping alone costs 4000 yen. Currently, this product is sometimes sold for over ¥18,000 at some overseas shops. Never used. A unique item that sets itself apart from ordinary mouthpiece cases. How about one for this opportunity?