Customer first, if there is any dissatisfaction with the product, support full refund within 30 days! Couple Color Changing Mug Interesting Hot Water Temperature Gradient Coffee Breakfast Tea Ceramic Cup Features: C-Handle & Rounded Corners: Comfortable to hold with rounded corners, making every sip . Dishwasher & Microwave Safe: Our mugs are designed for convenience, allowing for easy cleaning and heating. We prioritize your health, ensuring our mugs are from harmful chemicals. Ceramic Craftsmanship: Crafted with care and precision, our mugs are a to quality and durability. When the temperature of the cup turns cold, it is black, and when hot water is poured in, a pattern appears. Product Description: Material: Ceramics Color: Colorful Design: Religious PACKAGE 1 * Print Mug NOTE Please allow slight measurement deviations due to manual measurement. Due to the different and light effect, the actual color of the item might be slightly different from the color showed in the pictures. Viflosae Christmas Tree Decorations Couple Color Changing Mug Interesting Hot Water Temperature Gradient Coffee Breakfast Tea Ceramic Cup Christmas Ornaments Christmas Gifts C-Handle & Rounded Corners: Comfortable to hold with rounded corners, making every sip . Dishwasher & Microwave Safe: Our mugs are designed for convenience, allowing for easy cleaning and heating. We prioritize your health, ensuring our mugs are from harmful chemicals. Ceramic Craftsmanship: Crafted with care and precision, our mugs are a to quality and durability.