This is a Ryukyu glass. It's a traditional craft from Okinawa Prefecture, and it has a unique flavor. It's characterized by vivid colors that evoke the beautiful sea and sky of Okinawa. The rounded shape, crafted by hand by artisans, feels comfortable in the hand. - Color: Blue and transparent - Material: Glass - Shape: Round - Use: For beverages - Design: Blue decoration on the bottom Thank you for viewing.