Since this is an expensive item, I would appreciate it if you could contact me before purchasing. I would like to sell it after answering your questions and providing explanations, so I appreciate your understanding. I prepared this for my students, but I gave up because the bore was too large. It has been stored unused since then, and maintenance of the pistons, etc., has been completed. If you are a junior high or high school student who wants to use it, or if you want to use it for community transition, etc., I would be happy to discuss the price. Please feel free to comment. The mouthpiece is the included 51L. YEP-621S Suggested Retail Price: ¥555,500 (tax included) Suitable for junior high and high school students, from beginners to those who want to deepen their tone.