Officially licensed color changing, heat-sensitive ceramic mug Heat-activation reveals hidden image 11oz in size, weighs 1lb ✅ PLEASE NOTE - For long-lasting results, handwash only and do not microwave. Authentic Morphing Mugs heat-sensitive mug Reveal the warrior in you with this cinematic, image-revealing mug. Watch as this heat-sensitive mug unveils a powerful image of Wonder Woman in preparation for battle along with her insignia. The exterior of this officially licensed 11oz mug transforms from black as hot liquid is added, revealing the hidden image in full vivid colors.