Savor Double Wall Espresso Mugs. Set of 6. NEW in Box. Selling at Target for $21 for 2. Smoke free and per free home. Description This set of 2 handmade, double-wall thermo mugs, each mug boasting a unique curvature that holds 5.4 ounces. JoyJolt's unique double walled glasses are designed to suspends drinks within an inner wall for an engaging optical effect. They are made of heat and condensation-resistant borosilicate glass, which is stronger and more durable than common glass and which gives a smooth finish and a crystal clear look. These espresso mugs keep your liquid hot while keeping your hands cool at the same time. The high-quality glass makes this safe for dishwasher and microwave use however best not to use metal utensils. These make a beautiful addition to any café, restaurant, pub and to your own home. Can be used for cappuccino cups, lunge cups, macchiato, latte, espresso cups, demitasse cups, tea, smoothie and juice. Ships in an elegant colored printed box that is perfect for gift giving. Give that someone special in your life something that they will enjoy.