KEEP WHISKEY CHILLED WITH NO DILUTION - Bourbon and scotch benefit from a well-designed drinking experience. The Host Whiskey Freeze cocktail glasses are engineered specifically to keep whiskey chilled without watering it down. THE MAGIC IS IN THE GEL - The insulated plastic walls of these whiskey tumblers are filled with proprietary cooling gel. This works as a beverage chiller when frozen. Freeze for two hours to chill the tumbler gel and keep your drinks at ideal temperature. COMFORT-GRIP SILICONE BAND FOR EASY SIPPING - The BPA-free plastic construction creates a sturdy whiskey glass that works everywhere. An insulated silicone band on the base makes for comfortable handling, perfect for the outdoors! Hand wash only. GREAT FOR NEAT WHISKEY OR COCKTAILS - Whiskey drinks of all kinds stay frosty in the Host Whiskey Freeze . Enjoy an old fashioned, whiskey highball, manhattan, or a neat pour of bourbon or scotch without watering down your quality ingredients. INNOVATIVE GIFT FOR THE WHISKEY ENTHUSIAST WHO HAS EVERYTHING - This whiskey glass set is perfect for dad, or any whiskey lover or bourbon and scotch enthusiast who strives for the ideal spirit sipping experience.