Specifications:Material: heat sensitive porcelainSize: height 9.5cm、 mug diameter 8cmCapacity: 350mLThe mug is made of heat sensitive material、 when hot liquid is poured in、 the black cup turns into white and the sleeping face turns into smile faceNotes:1、 Don¡¯t expose under the sunshine for long time2、 Don¡¯t scrape on the printing with sharp tools3、 Wash with hand、 not suitable for dishwasher machine4、 Liquid temperature should be over 70¡æ and then the color changes. Be careful with hot water5、 Do not microwave