Stellar Stores Magic Color Changing Mug Wonderful Mug Heat Changing Mug for Tea & Coffee Everyday Use Mysterious Mug (Who?). A sweet little gift for Family & Friends or Every Day Use, this Mysterious mug with the cool color-changing effect makes sure that your friends and family have a great surprise moment with wide eyes. The thermal effect mug is the main attraction. When a hot liquid is added, the cup changes from black to white and reveals a design behind it. A magic mug is a hip replacement for standard coffee cups that is sure to impress. Hand washing is recommended for the magic cup. A lengthy color brilliance and good durability are promised by the high quality. Package Includes x1 Mug Only. We are responsible for products sold by our store ONLY Stellar Stores and we do not guarantee the products sold by other stores.