Fast Cooling & Slow Melting - Large round ice cube moulds with a diameter of 6cm not only cool drinks quickly, but also melt and dilute more slowly. The result is a long-lasting refreshing drink.FLEXIBLE AND EASY RELEASE - The round ice cube molds are made of food grade silicone and PP plastic, making it easier to release the ice balls. BPA free, safe and durable, no odor, easy to clean. After removing the ice tray from the refrigerator, wait 8 minutes or rinse it with water, then gently rotate the ice tray, the ice balls will be released soon.COMPACT AND STACKABLE - Whiskey ice molds are compact in design and won't leak. The ice hockey maker is stackable to save refrigerator space. The perfect ice maker for home, parties, restaurants, holidays, bars and more.EASY TO USE - To get the perfect round puck, fill the ice tray to the sink line, then close the lid and squeeze out excess water and place in the refrigerator.MULTIPLE USAGES - Spherical ice molds are perfect for whiskey, cocktails, bourbons, vodkas, smoothies, juices or other mixed drinks. You can also put fruit, jellies, baby food, coffee, vegetable purees, yogurt and chocolate into the molds.