This is a Yamaha student model. It's a later model with a silver-plated finish. Overall, it shows some signs of use. There are imperfections in the plating on the main tuning slide (the largest slide). (Bumps, see photos 10, 11, and 12). It's not too noticeable, but I recommend it to those who don't mind the appearance too much. The case is in good condition, but there is some dirt. For this listing, I disassembled the entire instrument, replaced any defective parts, and re-adjusted it. There are no issues with the sound. You can use it immediately. ◎ We welcome your price requests and inquiries in the comments. ◎ Even during comments, we will prioritize the person who completes the purchase process first, according to Mercari's rules. ◎ If you would like anonymous shipping, please leave a comment, and I will change it immediately.