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 the shank 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 send it to you. Also, I am very sorry, but please refrain from returns. I am looking forward to your comments!