This is a superb condition, lightly used Theo Wanne hard rubber Gaia Jazz series mouthpiece for the Bb clarinet. This piece is stamped a 9 and measures a whopping .068”. Definitely aimed at doublers, it feels like a good alto sax piece on the clarinet! The piece shows no real wear of note, no scratching or anything like that, and the beak has always been protected by a small patch. A very open, free blowing mouthpiece.