Officially licensed and perfect for fans of Dragon Ball Z, this mug and coaster set by ABYstyle makes a wonderful gift! Watch the heat-activated magic mug transform before your very eyes as you pour coffee, tea, or other hot beverages inside. As the mug's walls heat up, Goku's orange energy halo and the legendary Shenron will gradually appear. As an added bonus, a coaster featuring one of Goku's popular symbols is also included to keep your counters and tabletops cool and dry.