<b>Easy Use and Cleaning</b> <br>Wash the whiskey stones and put them in the ice tray to freeze for at least 4hrs and more before placing them into your beverages. After use, simply clean and dry them again to store in the freezer. <b><br>Cool Down Your Drinks</b> The liquid insides the ice cubes are some water (74.8%), glycerol (23%), and other food-grade chemical elements (2.2%) which are non-toxic and safe. The lowest freezing point is -46.5℃ / -51.7℉. <b><br>Bonus Ice Tongs & Storage Tray</b> <br>A BPA free rubber-tipped ice tongs and an ice cubes storage tray are included in the package to give you more convenience, to pick up the chilling stones easily and protect the cubes from scratch. <b><br>Authentic Taste Starts Here</b> <br>Kollea whiskey stones made from stainless steel create the possibility to quickly lower the temperature of your drinks while not spoiling the straight-from-the-bottle taste. They will never water down like usual ice cubes do, reusable and much practical. <b><br>Ideal Gift for Whiskey Lovers</b> <br>Packed in a decent Kollea gift box package, this reusable ice cubes set is always ready to perform as a gift for your boyfriend, dad, mom, colleagues, male or female friends and more whiskey lovers. <b><br>Entertain Your Guests Like Ever</b> <br>Good times are always short-lived yet happy memories last forever. Bring these ice cubes to a party or dinner, get them into whiskey, vodka, beer, wine, or other beverages to cheer, keeping your drinks cold to the last drop! you name it!