Finally, an easy method for making clear ice with our ClearSphere ice system! This perfectly insulated system creates a controlled environment where the oxygen is pushed into the bottom, leaving you with 2 crystal-clear ice spheres. These clear spheres are sure to impress and won't dilute your favorite spirits while the classic sphere shape is perfect for your drink on the rocks or for crafting cocktails in your stainless cocktail Shaker. These ultra-slow melting clear ice spheres won't dilute your favorite spirits or cocktails. This mold creates 2 seamless, 2.5" ice spheres. These molds are BPA free and dishwasher safe.