Haisai! Thank you for viewing. This item is Ryukyu glass that was displayed for ornamental purposes. *Unused item. ・What is Ryukyu glass? By trapping bubbles within the glass, it has a fantastic appearance reminiscent of sea foam and waves. Moriya Inamine is a leading figure in Ryukyu glass, and he creates beautiful works using unique techniques. *With engraving. ・Size Diameter: Approximately 9.0cm Height: Approximately 6.5cm Color: Blue Material: Ryukyu glass Shape: Round Bottom: Flat bottom Size: Easy to hold and the perfect size for everyday use. *When shipping, we will carefully pack it with bubble wrap. *Returns are not accepted. *If you have any questions or concerns, please feel free to contact us.