Ice Ball Maker by Chicago Cocktail Barware Savor your favorite whiskeys and craft cocktails without diluting their flavor profile or refreshing ice Makes four seamless 4.5cm spheres that fit perfectly inside most glassware Manufactured from high-quality food grade silicone for easy filling and removal 100% BPA Free, FDA Approved, Non-toxic and Dishwasher Safe 2015 Leak Proof Design - Chicago Cocktail Performance Barware