Niigata Prefecture's Tsubame-Sanjo city has established a global reputation as a hub for metalworking. This is a beer cup from Gyokusendo, which is a company that has been producing tsuchiki copperware for over 200 years, and it is no exaggeration to say that they represent Tsubame-Sanjo. Thank you for viewing. This item for sale is a pair set of beer cups from Gyokusendo, an Intangible Cultural Property, made with tsuchiki copperware. New and unused. Only opened for photography. Please check the photos and understand that this item has been stored at home. Please only purchase if you agree. Cancellations, returns, and claims are not accepted after purchase. Please refrain from purchasing if you are sensitive to such matters. About Tsuchiki Copperware: - Each piece is handcrafted by artisans, so there may be individual differences in color and shape compared to those on the official website. Please understand this beforehand. - Copper has excellent thermal conductivity and is especially suitable for enjoying cold beverages. - Be careful as the vessel will also become hot when hot items are placed inside, and there is a risk of burns. - The silver-colored part on the inside is coated with tin by hand. The fine irregularities on the surface created by this process make the beer foam fine and creamy. - The action of metal ions mellows the taste of the drink. Enjoy comparing it with your usual glasses for sake, beer, iced coffee, carbonated drinks, etc.