This is heat activated so it is made specifically to react to you pouring a warm liquid into it. You can pour in coffee, tea or even hot chocolate into the cup in order to activate it. After pouring the hot liquid the cup begins to change appearance! Slowly it will turn from a black cup with cold word to a white cup with hot word! Long exposure to sun is not advisable. Hand washing is highly recommended.; not suitable for dishwasher. Don't scrape on the printing with sharp tools. Kind Note: The color of product may appear slightly different on individual monitors. We have tried our best to present the true color of the product on the display images.
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