This is a fantastic vintage Beechler Diamond Dot Alto sax mouthpiece. The piece is completely original and measures out right at .075". It has a great sound with a lot of body. These mouthpieces have developed a very good reputation, and this on lives up to it. It is the perfect piece for for lead alto work, but can also get the job done in a small group setting. The sound is very complex, with a lot of fullness. This is the kind of mouthpiece that the great Earl Bostic used.