Set 2 Insulated Borosilicate Glass Double Wall 3.4oz Demitasse Espresso Cups Set of 2 Demitasse Espresso Cups (Gift Boxed) Double Walled to keep Drinks Insulated Microwave & Dishwasher Safe Made of Lightweight Thermal Shock Resistant Borosilicate Glass Approximate Dimensions: 2.5" x 2.25" x 2.25" (3.4 oz / 100 ml Capacity)