Adding whiskey stones to your favorite beer/beverage will cool the spirit without affecting its taste. Made of stainless steel for repeated use. Smooth appearance, easy to clean, not afraid of water, sturdy and not easy to break. The stainless whiskey stones provide for rapid cooling and sustained freezing. Features - Material: Stainless steel. - Size: 2.70 x 2.70 x 2.70cm/ 1.06 x 1.06 x 1.06 inch. - Can be used for liqueurs, white wine, coffee, juice, even all kinds of drinking. - Will not drinks, also will not affect the flavor of the drink. Most important use is properly. - Easy to use, can put it in the refrigerator directly, or put it in our box, then put it in the refrigerator. - Also given their small size, it is not a time-consuming and to wash and rinse them. - Can be cleaned with hot water before using, effectively sterilized. Also can use , then use water to clean. Package list: 4 x ice stones 1