Manufacturer: YAMAHA Model Number: YBB-641 Key: B♭ Size: 4/4 [Item Condition] Sound output has been confirmed, no problems. Rotary valves are in good condition. No stuck slides. Very easy to play, feels great. Dents, stains, scratches, and rust are present. Highly recommended for practice and hobby use. This model is also used in schools and large orchestras, and is very popular. How about taking this opportunity? [Included Items] Main body Hard case 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 details of the condition. Since this is a used instrument, we cannot provide a warranty, please understand!