Manufacturer: Nikkan Model Number: TR-134 Key: Bb [Item Condition] Sound production has been confirmed, and there are no issues. The pistons are in good condition. The tuning slide is stuck. Recommended for beginners. [Included Items] Main unit Case As shown in the images! Please ask any questions in the comments! Please understand that this is a used instrument, and refrain from purchasing if you are concerned about the details of its condition. Since this is a used instrument, we cannot provide a warranty. Thank you for your understanding! TP031