Sunnyhill ZoYo Double Wall 6 oz Rose Transparent Glass Wine Coffee Mug Glassware Nice and exquisite rose inner appearance model Unique double wall design suspends drinks within an inner wall for an engaging optical effect. Each glass made to keep your hands cool with hot drinks, and free of condensation with chilled beverages. A perfect home decoration after pouring some colored liquids into the glass cupMade of heat and shatter resistant borosilicate glass, which is stronger and more durable than common glass. Please NOTE: The bottom of the glass is open.