YBL830 Bass Trombone with Tuner/Metronome. - Model Name: YBL830 - Case Color: Red (Black exterior) - Case Material: Hard case Thank you for looking. This is a YAMAHA bass trombone, model YBL-830. I purchased it about 10 years ago and played it for about 5 years. I maintained it after each use, so I haven't seen any mold or anything similar. There are some minor scratches if you look closely, but I don't think they are noticeable. There is a small stain on the mouthpiece, which I will include in the photos, so please check beforehand. Also, there is one spot with a slight dent. I will also include a photo of this, so please check beforehand. The tuning slide is a bit stiff and difficult to move, so if this is a concern for usability, that part may require repair. Other than the above, it can be used without any problems. The tuner/metronome is not broken and should work fine. (I will dispose of it if you don't need it.) I believe it can be used without any issues for normal playing. Please contact me if you have any questions.