Crystal-clear ice spheres chill faster, dilute less and last longer than cubes can. Fill mold with water, freeze for at least 4 hours, and open to release a perfect ice ball - a better way to savour liquor on the rocks. For added flavour and garnish, fill the molds with citrus fruit slices, herbs or use juice in place of water. Silicone ice shell. Freeze 4 hours before use. Chills drink faster, dilutes Less, and lasts longer than traditional ice cubes.