Emile Henry Japanese Cups, Set of 2, Slate Set includes two Japanese cups Functional, elegant design: can go directly from the kitchen to the table Emile Henry's Ceradon is an exclusive process to produce strong and durable ceramic bakeware and tableware for everyday use: Extremely hard glaze does not scratch Thermal properties: keeps hot, keeps cold - use directly from freezer to oven to table (0F to 500F) Shock resistant - highly resistant to chipping, easy to clean by hand or in the dishwasher