1.Double Wall Design: espresso cups set of 4 feature a unique double-layer design.When the inner layer becomes hot, the outer layer will not heat up, protecting your fingers from scalding and keeping your liquid at the desired temperature for longer 2. and Convenient and : Our double walled espresso cups are heat-resistant and condensation resistant.So they are microwave and refrigerator .7.4 OZ/210ML capacity is perfect for espresso or cappuccino or latte,enough for daily use 3.Suit for Espresso Machine: Our glass espresso cups are suitable for espresso machine. As the espresso slowly flows into the cup through the coffee machine, the coffee and churned milk froth float in mid-air like a cloud. Ideal for home, cafes, restaurants 4.Easy to Clean: The wide mouth is easy to clean, you can wash the glass by hands with soaps and warm water to easily remove drink residue. These glass coffee cups are also dishwasher Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.