This item is changing heat water cup. Made of premium ceramic material, and practical for long term use. Beautiful shape design, its popularity. Suitable for home, office, cafe, etc. More convenient and easy to drinking. Features - ColorBlack - Material: Ceramic. - Size: 9.60X8.20X8.20cm/3.77X3.22X3.22in. - Capacity: 330ml. - Made of premium ceramic material, and practical for long term use. - After pouring in hot drink, the solar system pattern will appear, beautiful and educational. - Compact size for easy to carry. Suitable for home, office, cafe, restaurant, etc. - Add hot water or your favorite hot drinks in the mug, and the color changing will occur. - This special mug is a perfect present for your family, friends, co-workers and for yourself. Package list: 1 x Mug Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin