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Ceramic mug changes color when filled with hot coffee or tea Holds 10 ounces of your favorite hot beverage Watch the battery "light up" when your mug is hot Love your mug: hand-wash only.
The extreme temperature of a dishwasher will destroy the color-changing parts of the mug. Material: Porcelain Size: approx 7.7*9.2cm Capacity: 300 ml Weight: approx. 450g.