✅ COLOR CHANGING - Pour hot liquid into mug and image is revealed ✅ PERFECT SIZE - 11 oz Ceramic Mug ✅ GREAT FOR GIFTING - Officially Licensed, Designed and Printed in the USA ✅ THE REAL DEAL - Authentic Morphing Mugs Heat-Sensitive Mug by Trend Setters Ltd ✅ PLEASE NOTE - For long-lasting results, handwash only and do not microwave. This Morphing Mugs heat-sensitive mug features an image collage of Batman as he appears in Batman: Arkham Origins. The exterior of this officially licensed 11oz mug transforms from black as hot liquid is added, revealing the hidden image in full vivid colors.