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Edo Glass ”Kinpari”

Thermo-Reactive Pure Copper Tumbler with Tin Plating “Cherry Blossoms” / “Fireworks”
Manufacturer: Marumo Takagi Ceramics
This playful tumbler reveals its design when a cold beverage is poured in and the temperature drops below 17°C. When chilled sake is added, cherry blossoms or fireworks gradually emerge on its surface.