DOUBLE WALLED DESIGN - Made of heat and condensation-resistant borosilicate glass,Accept the temperature from -20C to 150"C.RETAINS THE TEMPERATURE OF THE BEVERAGE- with these insulated coffee cups your drink will remain especially hot or cold over time.DRINK WITH CONFIDENCE - Because your hands will stay protected from hot beverages. The cups are insulated without worrying that your hands will burn with heat or freeze from the cold.GREAT CAPACITY FOR DAILY USE - Can be used for Capucinno cups, Lungo cups, Macchiato, Latte, EENHANCE YOUR COFFEE EXPERIENCE - As a great coffee lover, handmade double wall glass coffee mugs 400ml sized 4.3 by 3.5 inches will fit you perfectly! spresso cups, Demitasse cups, Tea, smoothie and juice.GREAT CAPACITY FOR DAILY USE - Can be used for Capucinno cups, Lungo cups, Macchiato, Latte, Espresso cups, Demitasse cups, Tea, smoothie and juice.