Thank you for viewing. This is a Greg Black Alessi model 4D (inner diameter 26.35mm, throat 7.13mm). I played it for about six months, but it was too large for me, so I am selling it. There are scratches on the rim and shank, but there are no dents, so I don't think it will affect the performance. Please rest assured that the plating is not thin. The gold plating was not a gold-plated model when I bought it; I had it gold-plated at a musical instrument store after buying the silver-plated model. I will also include the attached case.