This is a Yamaha euphonium, model YEP321. It's a small-bore instrument, making it easy to play and handle, even for beginners. It's suitable for use in a wind band. I purchased this euphonium about two months ago, which had been previously maintained. I've been playing it once or twice a week. I'm selling it because I'm upgrading to a new instrument. There is a slight scratch on the back of the bell (photo 14) and a small, 2mm-sized plating chip on the back of the part held by the right hand (photo 15) from the time of purchase, but there are no noticeable plating chips, rust, or scratches, and it's in very clean condition for a used euphonium. The tuning slides are not stuck, and the pistons operate smoothly without any problems. Before listing, I cleaned the inside of the tubes and had the pistons adjusted at a musical instrument store. -Included Accessories- Mouthpieces x2 (YAMAHA 48, Bach 6-1/2AL) Swab Valve oil Slide grease Brass soap (new) Thank you.