This is a Griego Artist Series (for large shank) 5V mouthpiece. It is silver-plated. Unlike the Artist Series, which is the signature model of Alessi, this model is based on the Bach 5G. The inner cup diameter and throat size are not disclosed, but it is equivalent to the NY series 5. It is used, so there are some signs of use, such as insertion marks on the throat, but please understand this.