Hello, this is a brand new marbled hard rubber Fred Lebayle Studio Alto Saxophone mouthpiece. The tip opening is a 7*. Thank you for looking and feel confident with your purchase because f my perfect feedback. If you'd like to custom order a Lebayle mouthpiece let me know. Thank you. 

The Studio alto sax mouthpiece has been one of the most popular mouthpieces in the last twenty years. Now is your chance to see why. I am a distributor for Lebayle mouthpieces.  Please see my other items which includes several other one of a kind mouthpieces and many gorgeous and impossible to find Lebayle pieces. Thank you for looking.