Manufacturer: SMPEP KING Model Number: Unknown Key: Bb [Item Condition] Sound production has been confirmed, with no issues. The piston condition is very good. All tubes are stuck. There are no problems for practicing sound production. [Included Items] Main unit Case (damaged) Mouthpiece 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 condition. Since this is a used instrument, we cannot provide a warranty. Thank you for your understanding! TP033