Justice League - Batman & The Flash Heat Changing Mini Mugs (Set of 2)
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These Justice League heat changing mini mugs are sure to get your morning off to a strong start. Cold, the mugs show Batman and the Flash on a dark background on the front, with their logos on the back. When hot liquid is poured in, the mugs transform to reveal a bright and colourful comic-style background behind each of the superheroes and their logos. Once the drinks are finished the mugs return to their original state as they cool.