A mug is a type of cup, a drinking vessel usually intended for hot drinks such as: coffee, hot chocolate, or tea. Mugs usually have handles and hold a larger amount of fluid than other types of cups such as teacups or coffee cups. Typically, a mug holds approximately 250–350 ml (8–12 US fl oz) of liquid.

How does the printed magic mug work? The magic of these magic photo mugs is in the design. When a hot liquid is added to the personalized heat mug, a hidden design or message is revealed, creating a beautiful and memorable experience.