I received this from a former member of the Japan Self-Defense Forces Music Band, but I no longer use it, so I'm selling it to declutter. Also listed on other sites. This listing will be removed if sold elsewhere. For large-bore euphoniums and trombones. No scratches on the rim or shank. 【Product Description】 6-1/2AL MD 25.40 MW. A quite round rim. For players seeking a Teutonic (German) tone, with a rim and cup shape similar to 6 1/2A, a larger "G" throat (6.63mm), and a #420 (dark) backbore. Suitable for euphonium players seeking a powerful yet mellow, far-reaching tone.