Meyer, tenor saxophone mouthpiece 7SM. This is a very rare small chamber model. Compared to the medium chamber model, it has a bit more resistance, but it is bright and powerful, with a rich tone. I am reluctantly selling it to purchase a different type of mouthpiece. The mouthpiece and box are included in the sale. Please refrain from purchasing if you are looking for a pristine item or are overly concerned about the condition, as this is a used item.