◆ Available for Immediate Purchase ◆ Ryukyu Glass Ryukyu glass is characterized by its beautiful colors and diverse shapes that evoke the sea, sky, and coral reefs of Okinawa. A major feature is the presence of air bubbles within the glass, which are created by mixing sodium bicarbonate during the manufacturing process. Because they are handmade, each piece has a unique expression, even with the same design. Size: Diameter 7.5cm x Height 9.5cm