This is "Shiun" ink, a calligraphy ink made by the manufacturer Shosekido. It is a calligraphy ink that has been carefully kneaded and aged. It is used for creating calligraphy works. This high-quality Shiun ink comes in a 400cc black bottle. - Product Name: Shiun - Contents: 400cc - Bottle Design: Black bottle Thank you for viewing. These have been stored for a long time. I measured the weight to check for any difference in volume. One bottle weighed 378g and the other weighed 374g, so they may have been used once. We look forward to your purchase if you understand this.