Combler large ice cube molds for cocktails can make large diamond ice balls. Impress your guests and add a touch of elegance to your whiskey with this captivating diamond ice ball maker mold. These large ice spheres melt slowly to keep your drinks cold. Perfect to chill cocktails, whiskey, Bourbon, tequila, or other drinks with less dilution. This round ice cube mold is durable, BPA-free, and odorless. These Combler ice molds for whiskey are suitable for temperatures ranging from -40°F to 167°F. Hand wash only! Follow these simple steps to make the perfect diamond ice ball: 1) Fill the bottom mold with water up to 2/3 full. 2) Push down the ice mold's lid slowly. Let the spill-out water leave on the lid. (Prevent the cover float.) 3) Freeze for at least 12 hours. 4) Allow it to thaw naturally for a few minutes.