Willie's SB10S silver-plated This is a horn mouthpiece. I am selling it because I purchased a different instrument with a different shank. It was used for less than a month and has no scratches! I think you will be able to use it for a long time to come! Cup diameter: 17.50mm Bore shape: 4.5 Cup shape: V-cup Slightly smaller volume than AB7 It is a standard shank, so it fits many horns such as Wenzel Meinl, Hans Hoyer, Wilson, Paxman, and Holton. The current new price is 33,000 yen. The box is not included, but I will pack it carefully and ship it. Also, I am very sorry, but please refrain from returns. I am looking forward to your comments!