With its understated elegance, the Crafts Copper Cup is suited for soft drinks, teas and sake. Its distinctive finish is achieved through a centuries-old patination technique to reveal the metal's authentic hues, embodying the Japanese philosophy of finding beauty in natural variation and the passage of time. Skilfully made in a region renowned for over 400 years of exceptional metalworking, it showcases the enduring artistry of traditional Japanese craftsmanship. Specifications Dia. 5.2cm x 4.7cm100% CopperHandcrafted in Toyama, Japan Care and Maintenance Avoid using the cup for alcoholic beverages of 40% ABV and upwards (e.g. cognac, whisky, rum, vodka, tequila) as it will damage the coating. To preserve the beauty and longevity of the copper, hand washing with a soft cloth or sponge and mild detergent is recommended. Avoid abrasive cleaners or scouring pads.