Pour hot liquid into the Space Jam Balling Bunnies Heat-Sensitive Morphing Mug and Lola and Bugs hit the court. The exterior of this 11 oz. mug transforms from black as hot liquid is added, revealing the hidden image in full vivid colors. Makes a great gift for fans of the Looney Tunes and the movie Space Jam. Hand wash only. Not dishwasher safe. Do not microwave.