Features: 1. Natural whiskey cooling stone, never melts, will not dilute the mild taste. 2. Natural saponite, which can lower the temperature of drinks, more unique and stylish. 3. Rich in minerals and trace elements, good for the human body, safe and healthy. 4. Easy to clean and operate, after cleaning, put it in the refrigerator, cool for 2-3 hours or long to use at any time. 5. Perfect gift for lovers of beer, wine or drinks. Suitable for home, pub, club, party and other places. 6. Cooling without melting, preserves the original taste of drinks or wines. Specification: Item Type: Whisky Chilling Stones Material: Granite Optional Color: White Sesame, Grey Sesame Stone Size: 2x2x2 cm/0.8x0.8x0.8 inch Bag Size: 8.5x12 cm/3.3x4.7 inch Wooden box size: 10x7.5x3.5 cm/3.9x3.0x1.4 inch Package Weight: Approx. 290g List of packages: 9 x Ice Stones 1 x Velvet Bag 1 x Wooden Box Instructions: In daily use, simply wash the cooling stones with clean water, soak them in the refrigerator, and freeze them. Generally it takes over 2 hours. Then, when you want to drink or drink, remove the cooling stones and put them in a wine glass. Stir and drink. Cooling stones can be reused. After use, it can be cleaned and put in the refrigerator for freezing.