Cold fireworks flat cup pair set A vessel to enjoy the season when the color changes depending on the temperature

"Cold feeling series" with a temperature design that combines tradition and the latest technology Cold fireworks that represent the four seasons of Japan. When you pour a cold drink into this mysterious glass, colorful fireworks will be launched! !! Fireworks that add brilliance to events and parades not only in Japan but also around the world. It is a memorable design with the theme of the light of hope that colors the night sky. https://youtu.be/Q1H3JR-NZDQ Pour a cold drink into this mysterious glass and the cherry blossoms will be vividly colored! !! Changes occur when the glass drops below 17 ° C. And when it reaches room temperature, it returns to its original state. It will be a set of 1 white cup and 1 black cup! In a vanity case Material: Ceramic Size: φ90mm × H34mm Capacity: 70cc Before use * Once the pattern is cooled, the color will develop more clearly when you use it later. * If you rub it strongly, the transfer may come off. * Do not wash with a material such as a metal scrubbing brush or an abrasive. * Please do not use in a microwave oven or oven. * Since the dye of the pattern is sensitive to ultraviolet rays, do not expose it to direct sunlight for a long time. * Due to manual work, the position and shape of the transfer may differ. * There may be individual differences in color development. https://youtu.be/01iS5ZTDwUc https://youtu.be/DJuEsQUWY-A