For the serious player. This is the trombone mouthpiece case "BM215" made by 【PROTEC (Pro-Tec)】, an American wind instrument case brand trusted by professional musicians around the world. Imported from the US in May 2025, but I'm selling this one because I've decided to use a 4-piece case. ⭐️ A standard for performers, "respected just for having it" ⭐️ Top-tier players are seen using it on stage and at gigs ⭐️ The 6-piece design is proof of someone who seriously selects their sound ──Setting itself apart from inexpensive mouthpiece pouches, the BM215 naturally gives respect to your equipment and a sense of trust as a musician. ✔ 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 your actions around your instrument Shipping alone costs 4000 yen. Currently, some overseas shops sell this product for over ¥18,000. Never used. A unique item that sets itself apart from ordinary mouthpiece cases. How about one for yourself with this opportunity?