LIFETIME GUARANTEE - YAWALL promise LIFETIME AFTER-SALES SERVICE and 12-hours responds. If you are not satisfied for any reason, simply return it for a FULL REFUND or NEW REPLACEMENT. Any questions, don't hesitate to contact our YAWALL TEAM. KEEP THE ORIGINAL TASTE OF THE DRINK - Can be used for Irish Whiskey, Scotch Whisky, Japanese Whisky, Tennessee Whiskey, Rye or Bourbon and odka, liqueurs, white wine, coffee, juice, even all kinds of drinking. Will not dilute drinks, also will not affect the flavor of the drink. Most important use is properly. USEFUL WHISKEY CHILLING ROCKS - Easy to use, can put it in the refrigerator directly, or put it in our bag, then put it in the refrigerator. After 8 or 12 hours, put it in drinking. Also given their small size, it is not a time-consuming and hard job to wash and rinse them. Can be cleaned with hot water before using, ensure effectively sterilized. Also can use detergent, then use water to clean. PERFECT GIFTS - Stylish and luxurious appearance can make it a luxurious gift for your families and friends. Perfect Gifts for most of holidays such as birthday, Valentine's Day, Father's Day, Mother's Day, Thanksgiving, Halloween, Christmas, New Year, etc. Can be used at home, office and parties to enjoying relaxing time. Also used for sprains on the body, bring down a fever, can be applied cold and help to reduce swelling. UNIQUE ICE WINE STONE – Made of high quality stainless steel 304. SAFE to everyone, DO NOT SCRATCH GLASS and HIT YOUR TEETH. Beautifully packaged , comes with stainless steel tongs for easy use and high quality velvet carrying pouch. Also with five sterile vacuum transparent bags to keep in the refrigerator for freezing more cleaner.