1. Does not apply 2. REAL GLASS PROVIDES A SATISFYING SIP - This set of wine glasses is constructed out of real glass, combining the innovation of our gel-filled double walled cooling technology with the satisfying feel of drinking out of real glass. 3. PERFECT FOR ALL WINES - Achieve the ideal serving temperature for every wine with this set of stemless wine glasses. Freeze these insulated glasses for at least two hours to chill the gel all the way, or store in the fridge for a lighter cooling effect. 4. THE MAGIC IS IN THE GEL - The insulated walls of these wine tumblers are filled with proprietary cooling gel, which works as a wine chiller when frozen. Freeze tumblers for two hours to keep white wine cold, or in the fridge for cellar temperature reds. 5. SERVE YOUR WINE AT THE RIGHT TEMPERATURE - Generally, white wines should be served cold at 43 to 53 degrees Fahrenheit, and red should be served at just cooler than room temp, also known as cellar temperature, around 58 to 60 degrees. 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.