Contents: ・Trombone body (Includes a nickel silver mouthpiece pipe for initial setup, with interchangeable mouthpipes) ・KTL semi-hard case Specifications: ・Bell/Body Material: Yellow brass ・Bore Size: 13.89mm ・Bell Size: 220mm ・Finish: Clear lacquer This is a model supervised by Mr. Gilles Millière, a member of the Paris Trombone Quartet, which has now been discontinued. Although it's a heavy instrument overall, the unique, expansive, and brilliant tone of this instrument is addictive. As a side note, Mr. Jörgen van Rijen, principal trombonist of the Royal Concertgebouw Orchestra, used the slide of this model on the outer slide of his AC420MBR, which he used to play in the past. This is a very reliable instrument, but due to the effects of aging, my physical condition has worsened, and I have decided to put it up for sale. There is some lacquer peeling on the slide section, but otherwise, there are no dents or lacquer wear, and I believe it is in beautiful condition. It is a beautiful item, but please understand that it is a used item. Thank you.