Thank you for viewing. [SM2S] S Rim, Inner Diameter: 17.45mm, Throat Diameter: 4.2mm, Cup Shape: V-cup, Standard Shank The retail price is probably around 30,000 yen now. This is a Willies mouthpiece. I used it for about six months. There are no dents from dropping it, but there are scratches and blackening on the inside. For those who understand that this is a used mouthpiece, thank you. This is a very high-quality mouthpiece made in Yamanashi Prefecture. The tone is soft and very easy to play.