Domestic Corner - Geo Sphere Duo Silicone Ice Ball Maker and Mold - Creates 2.5" Ball - Set of 2 Geo Sphere Duo Silicone Ice Ball Maker creates two 2.5 ice balls. Large spherical design creates slow melting ice that chills your drink to perfection. Ideal for classic cocktails and all other libations. Molds stack neatly for convenient storage. BPA free, dishwasher, freezer, and food safe.