Ceramic is a mechanically robust material that may be easily molded into the appropriate shape. Compared to glass mugs, our Ceramic Cups and Mugs have a longer lifespan. Ceramic can be easily molded into any shape, making it possible to create a wide range of unique design mugs. Because of their ceramic construction, the cups and mugs in this set keep their heat for an extended period. Because of this, if you are the type that makes their coffee or tea and then gets distracted by other tasks or like to sip their beverage slowly in the morning or evening, you will save yourself the trouble of having to reheat it over and over.