Heat-Activated Art: Watch as your hot beverage reveals a vivid, full-color image of the Joker from The Dark Knight on this ceramic mug Perfect Size for Every Sip: This 11oz mug is just the right size for your morning coffee or evening tea Durable Ceramic Construction: Made from high-quality, lead-free ceramic, this mug is built to last through countless hot drinks Officially Licensed Design: Authentically designed and printed in the USA, this mug is an officially licensed product of DC Comics Easy to Clean: Dishwasher safe for convenient cleaning, ensuring your mug stays in great condition for years to come Experience the whimsical chaos of the Joker with this 11oz heat-sensitive mug from Morphing Mugs. Crafted from durable, lead-free ceramic, this mug transforms from a sleek black exterior to reveal a vibrant image of the Joker from The Dark Knight when exposed to hot liquids. Perfect for coffee or tea, this modern, reusable mug is a fun and interactive way to enjoy your favorite beverages at home. Measuring 3.5 inches in width, it's easy to grip and fits perfectly in most mug holders. Care instructions: Hand wash only.