Product Material: Food grade silicone 1.Not-stick design, easy to release- Separating ice from the mold isn't a tough job anymore. Unlike the traditional stiff plastic trays, these molds are easily removable that anyone can remove or release the ice cubes from the mold with the ease. Just twist the mold, and you'll have the chilled drink. 2.Flexible ice ball mold - Creates 4 large 1. 75 inch balls. Great for whiskey, cocktails, making popsicles, icing your Coffee, or infusing fruit or herbs. Try infusing mint for that perfect or strawberries for that delicious lemonade 3.Safe and reliable -Made from 100% food grade silicone;,Easy to clean, dishwasher safe. 4.Slower melting, long cooling- Our large ice balls and cubes melt slower than your average ice cube, allowing you a more flavorful drink experience. Stop watering down your favorite drinks amp; Start using our giant ice balls design. 5.Silicone ice trays won't crack or break like stiff plastic molds or trays. Easy to fill, Easy to use, Easy to clean, Dishwasher safe and is a must have kitchen gadget.