Retro Glass Double Current Model J-kitchens Heat-Resistant Tumbler, Walled, 82xH90mm, 200cc,

Country of origin: China Material/Component: Heat-resistant glass ● Avoid using the product in a way that causes sudden temperature changes, such as sudden cooling or heating. Cannot be used in microwaves or ovens. ● Do not use metal scrubbers or cleansers, as they may cause scratches, and chlorine bleach may cause a whitish cloudiness. ● Washing ceramic, metal, or glassware together in the washtub may cause scratches or damage. ● Stacking cups may cause them to become stuck or break. ● This glass is soda-lime glass. Clouding may occur if left for a long time, but as a countermeasure, try soaking the glass in water for 3-4 hours with household vinegar. All products are inspected and managed in Japan. As they are handmade by artisans, size and color may vary slightly.