I am selling a Meyer 5MM (alto) mouthpiece purchased from SAXmen.jp, a musical instrument store in Matsumoto City, Nagano Prefecture, which selects and sells only mouthpieces with well-aligned rails. I have used it for about six months. The sound is moderate among Meyer mouthpieces, and can be bright or dark depending on the setup. The rails are well-aligned, making it easy to match reeds, and it has a unique resistance while still being easy to blow. There is a dent on the back from the ligature and shallow teeth marks on the beak, but the rails and tip are clean. It comes with the original cap, ligature, and box. Thank you.