High Quality Materials: Whiskey Stone Ice Cubes are made of food grade 304 stainless steel, they are cut, tumbled and polished to form smooth edges that will not damage your glass. Easy to use: just put the ice cubes in the fridge for 2-4 hours, the gel in the ice will solidify, put 2-3 stone ice cubes in your favorite whiskey, the stones will slowly cool your drinks without diluting your whiskey, so that you can retain the flavor of your favorite drink. EASY TO STORAGE: The smooth whiskey stone ice cubes will not scratch your wine set, just wash them by hand or in the dishwasher after use and keep their original appearance, then recycle to a tray to keep stone ice clean and to store while freezing. Widely Used: It can be used in any drink. While these metallic whiskey stones are traditionally used for whiskey, they can also be used in other spirits, brandy, gin, and even carbonated drinks. You can fully enjoy the original flavor and aroma of the drink. PERFECT GIFT: Whiskey Stone Ice Cubes are ideal gifts for wine lovers or banquet hosts. The stainless steel ice cubes come packaged in gift boxes and can be given to your friends, husbands, dads and even you anytime! The whiskey stone ice cubes can be used with family and friends on birthday parties, birthdays, Valentine's Day, Christmas and other occasions.