Made of durable, heat and condensation-resistant, mouth-blown borosilicate glass of the finest quality, the newly improved Moderna artisan series coffee mug belongs to the Ozeri artisan series of award-winning handcrafted drinkware. Each glass features Moderna's double-walled design that suspends beverages within an inner wall for the ultimate insulation, preserving drinks at their ideal temperature. The modern's opposing mouth-blown dimples make for a natural and effortless grip. Each glass is made to keep your hands cool even with your hottest drinks, and free of condensation with your chilled beverages. Whether it is an occasion for an espresso or some other beverage, borosilicate glass is completely resistant to acids, and your Ozeri glasses will never lose their original sheen. The patented modern glasses are great for coffee, cappuccinos, hot or iced teas, cocktails, frozen beverages, and much more. Each set contains 8 handmade 12 oz glasses designed for lifetime use. The modern glasses are completely microwave and freezer-safe, and ship in an elegantly printed and carefully packaged box with a no-hassle warranty.