Crystal-clear "Glacier Rocks Sphere" ice molds chill faster, dilute less, and last longer than traditional cubes can. Fill mold with water, freeze for at least 4 hours, and open to release a perfect ice ball. You can also add fruit slices or herbs when freezing for added flavor. 

• Measures: 5.6" x 5.3" x 2.5"
• Made from silicone
• Set of 4
• Freeze 4 hours before use