Trumpet MEDIUM Trim Kit - KGUmusic,Trumpet MEDIUM Trim Kit - KGUmusic,Trumpet SPECIAL GRID Trim Kit - KGUmusic,KGUmusic's RS Trumpet with TAYLOR BELL (brass+red brass),Amazon.com: Trumpet Trim Kit for improving the sound. for一度しか使ってません思った感触じゃなかったので放出しますBachタイプの楽器にあいます