Yamaha trombone/euphonium mouthpiece. The shank is for large bore instruments. This is an old model, but it's in like-new condition, having only been test-played once. There is no outer box, so the mouthpiece will be shipped by itself. It was stored without the outer box, so there may be small scratches or dullness, but these do not affect performance. (Please check the photos for the condition.) The specification is 【48】, which is a good size for beginners. This mouthpiece has a very well-balanced rim and cup with a narrow backbore. It is a highly complete mouthpiece with the ability to meet the advanced demands of professional musicians.