This is a Willie's French horn mouthpiece, model S78 M2 S AX. There are some scratches around the shank from insertion and removal, but overall, it appears to be in good condition. *Please note that I will be unable to ship items from November 10th to November 12th due to circumstances.* The specifications are as follows: Inner rim diameter: 17.8mm Rim shape: S rim (gradually sloping downwards towards the outside) Cup shape: Slightly U-shaped V cup (similar to Mac Williams 2) Throat diameter: 4.2mm Cup appearance: S blank (light type: shape with reduced thickness on the underside of the rim) Shank: AX (designed for Alexander and double-taper Yamaha horns) Because the cup is slightly deep, it produced a calm and soft tone. While it's difficult to produce a hard tone, it offers flexibility and makes it easy to harmonize with the same section or other instruments. Willie's mouthpieces have a smoother feel than any other manufacturer's, and while they feel soft, they surprisingly don't slip and are less tiring. I've decided to use a different mouthpiece as my main one after comparing several, so I'm selling this one. Current new price: 33,000 yen I plan to keep it for myself if it doesn't sell, so there are no plans to lower the price.