Yamaha trombone/euphonium mouthpiece. The shank is for large bore instruments. It's 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 nothing that would interfere with playing. (Please check the condition in the photos.) 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 has the ability to meet the advanced demands of professional musicians and is a highly refined mouthpiece.