This is an adapter for playing a flugelhorn with a cornet mouthpiece. *Please note that it may not be usable depending on the shape of the cornet mouthpiece. (Bach cornet mouthpieces fit) 【Size】 18mm x 38mm 【Material】 ・PLA resin (plant-based plastic) I bought this and only tried it on because the size didn't fit. Since I've opened it, it's cheaper than when I bought it, so there is no discount. *This item is available for immediate purchase. *We do not have a dedicated page, so please purchase it as soon as possible. If you have any other questions, please feel free to ask in the comments. Thank you for looking.