Aerb Stainless Steel Ice Cubes Chilling Stones Rocks Reusable for Whiskey Wine Beverage Drinks W Tongs, Set of 6 1. Food-grade stainless steel liquid-filled cubes are a non-diluting alternative to ice cubes; 2. Made from stainless steel, durable, easy to wash and clean; 3. Unique gift for spirit drinkers; best chilling ice cubes for whiskey in the market; 4. Securing a secret non-toxic gel; extend the chilling! 5. Great for whiskey, vodka, liqueurs, white wine and more