This is a Vincent Bach trombone mouthpiece. It is for large shank (tenor) trombones. The size is the standard 6-1/2AL. This is a so-called standard size, and many professionals and amateurs use it. Also, many people use it not only for trombone but also for euphonium. There are scratches, dents, and a lot of wear and tear, but I think it is in a condition that does not affect playing. If you want to try it out but can't afford a new one, please consider it. I don't think there will be any problems with playing, but it is a used item, so please judge from the photos and consider it. ✨Thank you for viewing!(^^♪ ♡Instant purchase is OK✨ ♡We try to ship within 24 hours (^) ✨Feminine ★ Trend ★ Popular items ★ Ready to use ★ Many items on sale ★ ✨#Select Shop✨WAKO✨← You can see all the products. Please take a look. (´ω`)