Purchased this July. I play the trombone and bought this used to use as a secondary instrument. It has a light feel when playing, and I got the impression that it had a wide range and was easy to hit the notes. Furthermore, I had the impression that it was relatively easy to produce a core sound. However, I found that I had extra power when playing it, and I will be getting another model with a compensating system, so I am selling this to raise funds. I actually used it about 10 times, including once for this year's wind ensemble competition and once for an outdoor performance. There are no problems with the movement of the slide or the pistons themselves. In September, I had the springs, valve guides, and felt set replaced at a musical instrument store. I will include the original 51L and Bach 5G mouthpieces. According to the serial number and the previous owner's information, it seems to have been manufactured around 2006. There are some dullness of the plating, polishing scratches, and scratches, as well as several dents that are visible to the eye (I have marked the areas that are difficult to see in the photos). The handle leather on the hard case, which is common for this era, is slightly peeling, but there is no pain when holding it. The instrument itself is relatively lightweight and is also a model that is easy for beginners to play, so I am including a tuner as a bonus. I will answer any questions you may have to the best of my ability. Please consider purchasing this item with the understanding that it is a used item. [Brand] YAMAHA [Category] Euphonium [Condition] Has scratches and dents B♭. The valve system is 4 pistons. The bell is yellow brass, 280mm in diameter, bore size is 14.5mm (1st to 3rd) / 16.8mm (4th), silver-plated finish. "Low range that envelops with exceptional power. Responds to the music the player envisions with a rich sound. Expressiveness that can be played widely, from British-style brass bands to wind ensemble sounds. A thick and fulfilling low range and a clear sound. Comfortable resistance and flexible controllability are realized. Accurate intonation, including the 6th overtone F. Furthermore, excellent operability also supports the player. Yamaha euphonium that expresses the player's thoughts without reservation. YEP-621S with a side-action 4th piston." - Type of instrument: Euphonium - Material: Metal - Color: Silver - Accessories: With case - Number of valves: 4