Thank you for viewing. This is a Ryukyu glass matcha tea bowl made by Naoya Oshiro, a contemporary master craftsman. I purchased it at a Ryukyu glass specialty store during a trip to Okinawa. It has a blue color that seems to capture the Okinawan sea, and colorful patterns on the outside. It is unused and has been displayed in a glass case, but I will sell it to someone who can use it. Although unused, there are no noticeable scratches or stains. No accessories included. The first image is the closest to the actual color, depending on your device. There is an engraving on the bottom (3rd image, the character "尚"). The size is approximately 13.5 cm in diameter, 7.4 cm in height, and 4.3 cm in diameter at the bottom. All measurements are in centimeters, and please understand that there may be some error due to amateur measurement. If you would like a discount, please state your desired price in your first comment. I am not considering a half-price offer right away. Thank you for your consideration.