Thank you for viewing. I collect the Kagami Crystal Seiboku (blue-black ink) series. As a collector, I have displayed them in a cupboard, but they are unused. They are not in the catalog, so I believe they have already been discontinued, but I apologize if I am mistaken. In preparing for this sale, I have inspected the item, and although it is a casual inspection, I found a small 1mm air bubble on the bottom from the manufacturing process (image 11). Other than that, there are no noticeable scratches or stains. If you are concerned about minor details or are a perfectionist, I apologize, but please refrain from purchasing this handmade item. I would appreciate it if those who understand this type of item would consider purchasing it. Size: Diameter: Approximately 8.7cm Height: Approximately 9.5cm Please allow for some margin of error. Thank you.