This is a medium-thin tube, the same shape as the current TB-650L. I used it for four years, from the third year of junior high school to the third year of high school. After purchase, I had it adjusted and repaired at a musical instrument store. J. Michael is made in China, but this one is quite usable because it has been adjusted quite a bit. The sound is relatively soft. Overall, there are areas where the lacquer has peeled off, possibly due to rust, and there are fine scratches. There are no major dents. The slide moves smoothly. The case and mouthpiece are included. Case: Overall, there is dirt. The shoulder strap金具 is broken. Mouthpiece: It's the one that came with it originally. I will pack it in a bag or bubble wrap and ship it with the case.