Arita-yaki Usu-kiwami Tumblers, Set of 2 Usu-kiwame Long Cup Pair, Paulownia Wood Box Kou-gama White Glass, Thin Extreme Unused, beautiful condition! This is the "Usu-kiwami" series, a registered trademark by the Japan Patent Office, created by reviving the eggshell technique. It is a unique masterpiece with a thickness of only 1 millimeter, allowing light to pass through. ⚫︎From the website: During the Edo period to the early Meiji era, this technique was used for export porcelain fired in the Hizen region. It was called "egg shell" because it was as thin as an eggshell, and was exported to Europe as high-class JAPAN MADE art objects. After that, the technique disappeared. After 150 years, this Arita-yaki Usu-kiwami Cool Long Glass has been reproduced with a new technique. The artist is Toshimitsu Matsuo, and it is a pottery/porcelain that requires a lot of time and carries a high risk, as each piece is made carefully. It is a technique of Arita-yaki that the world can be proud of. Using the world's unique Amakusa ceramic stone, these thin and elegant vessels were created. ●Glasses (approx. height 11.5cm x diameter 8-5cm, capacity approx. 330ml) x 2 / Porcelain ●Made in Japan ●Box dimensions: approx. 14.5 x 20.5 x 10.5cm ※Because they are handmade, the colors, patterns, and sizes may vary slightly. Cups, glasses, pottery, ceramics, white, beer glasses, couple, pair, pair glasses, teacups