This is a Kurutoga Dive in Grand Blue, a limited edition color released about three years ago. It was a limited run of 5,000 pieces, making it quite rare. They are now traded for around 40,000 yen new. I obtained one in good condition, so I am offering it for sale. The eraser is unused, but there is a scratch on the main body as shown in the third photo. It was mostly kept in a pen case and hardly used. As this is a rare item, please refrain from price negotiations.