Greg Black 25th Anniversary Mouthpiece For Hosoma Tenor and Alto Sax Small shank (for narrow bore). In recent years, they have hardly been manufactured, and since those who own them don't let them go, it's difficult to obtain them on the market. The size is 24.70mm. The rim is flat and medium wide. The cup is medium-shallow. This mouthpiece produces a thick, core sound with good response. The sound doesn't diffuse around the receiver, but rather resonates from the bell. There are no major scratches or dents that would hinder performance. Please check the images.