Serafino Double Wall 12 oz Beverage & Coffee Glasses - Set of 2 Insulated Drinking Glasses Set of 2 heat and condensation-resistant borosilicate glasses that each hold 12 oz Stronger and more durable than common glass, each glass features a wraparound contour that provides a natural aesthetic grip Patented double wall design that suspends drinks within an inner wall, creating an engaging optical effect Designed to keep your hands cool with hot drinks, and free of condensation with chilled beverages Completely microwave and freezer safe. Ships in an elegant 4 color printed box with a No-Hassle Warranty. Satisfaction Guaranteed