CHILLS WITHOUT DILUTING Made from stainless steel material that wont rust or corrode and that holds a cold temperature incredibly well, it will not affect your drinks flavor. Food Grade Stainless Steel Made of 304 class non-corroding stainless steel, whiskey rocks are durable, reusable, and safe to everyone. Rounded edges design will never scratch glassware or hit your teeth. COOLS DOWN DRINKS FAST Freeze 4 to 5 hours and ready to go Its no need to wait overnight to use, best chilling ice cubes for whiskey in the market. A Must-have in Daily LifeIn addition to cooling the beverage, like whiskey, beer, soda, coffee, juice, vodka, bourbon, liqueurs, white wine, cocktails, it can also be be used for physical cooling, like fever reduction, cold compress, sprain, and swelling reduction. TREAT YOURSELF AS YOU DESERVEThese Whiskey Chilling Stones / Whiskey Stones Stainless Steel Are an Ideal Option for You and Your Friends to Get the Best Out from Your Drink.