Selling to organize equipment. This is a prototype cello endpin I recently purchased on Mercari. It's a very good endpin that produces a powerful sound, but unfortunately, it didn't align with my direction, so I'm letting it go. The usage time is only a few hours of testing. I was able to buy it at a low price because it's a prototype. There are stains like burn marks near the gold ring at the tip, but I think it doesn't affect the function. (Photos 2 and 3) Below are the manufacturer's details. ■ Product Contents Cello Natural Model 10mm 50cm ・Even among special steels, it has high strength and toughness, and the tip is much less likely to wear down compared to stainless steel and titanium endpins. 〈Natural〉 As the name suggests, it makes the instrument sound very natural. If previous endpins added color, this one adds no color at all. It simply allows the original sound of your instrument to resonate. Both the right and left hands are very relaxed, and you won't get tired even after playing for a long time. You can play for as long as you want, that's the characteristic of this endpin. It is also ideal as a modern endpin for those who play Baroque cello.