Printing Flower Changes When Hot or Cold Color Changing Ceramic Coffee Cup Bowl Feature: Pour a cold（below 71°F/22°C）/hot(above 113°F/45°C ) drink into this mysterious glass and the cherry/peach/plum blossoms will be in full bloom! ! Color Changes occur when the glass goes below or above temperature required. Please read the instructions before using. Non-toxic lead-free high temperature 320° Cup size (1 piece): Diameter 90mm x 34mm Capacity (1 piece): 70cc Material: Ceramic Package included : 1×cup