Harry Potter and the Prisoner of Azkaban Heat-Activated Morphing Mug
The exterior of this 11oz mug transforms from black as hot liquid is added, revealing the hidden image in full vivid colors. Color changing, heat-sensitive ceramic mug Heat-activation reveals hidden image 11oz in size, weighs 1lb Officially licensed mug designed and printed in the USA by Trend Setters Ltd. Authentic Morphing Mugs heat-sensitive mug Product
Great purchase! What a fun and excellent product. It works great and is really cool to watch transform. Itâs well worth the buy.