Thank you for viewing. I am selling a trombone mouthpiece. - Greg Black 5G Regular - For large bore trombones, silver-plated - With box This is a trombone mouthpiece. - Cup inner diameter: 25.80mm - Cup depth: Medium Deep There are no major scratches or dents, and I think it is in good condition. A Greg Black mouthpiece, which is not widely available in Japan. It's the classic regular weight 5G. Personally, I think it produces a rich sound, and the articulation is clear. Despite being a heavy type, it is a very easy mouthpiece to control. Type...Trombone Accessories/Parts...Mouthpiece