Meyer 5MM (for alto saxophone). Medium facing, medium chamber specifications. Purchased used, it has discoloration, scratches, and ligature marks. Please check the photos. According to the previous owner, it's approximately 30 years old. Among the mouthpieces I own, it produces a brighter sound. There are no accessories such as a box. Only the mouthpiece itself. It will be wrapped in cushioning material for shipping. Please understand that this is a used item and that individual perceptions may vary. We kindly request that you purchase with no claims and no returns.