This is a vintage Otto Link hard rubber mouthpiece with a Tone Edge for tenor saxophone, with a tip opening of 7. This mouthpiece produces a very edgy and sharp sound, with a cool and light playing feel. The tone is consistent and very good, but it's different from the sound I was looking for. I was hoping for a darker tone, so I'm reluctantly selling it. I purchased it used last month and have used it about 2 or 3 times. Therefore, the product condition is quite good. It's a really great mouthpiece, so I recommend it to those who are looking for a bright tone or a tone between alto and tenor. This item is being sold with the case, ligature, and cap. This is a product that is not widely available, so please consider it.