Fangrui Product Details Food Grade Silicone Material Reusable Non-stick Silicone Ice-cube Tray Compatible With Cup With Separate Cavity Design For Easier Release Of Large Ice-cubes, Just Push The Bottom To Remove The Ice-cubes Without Bending Or Twisting. Compatible With Accessories Simply Pour Water Into The Tray, Close The Lid And Place In The Freezer. Enjoy Different Sizes Of Ice-cubes That Can Be Combined To Make 30-40 Ounce Cups. Removable Lid- Comes With A Removable Lid That Makes It Easy To Stack Ice-cube Trays While Keeping Them Clean. Silicone Freezer Trays With Tight Fitting Lids Keep Food Or Ice Fresh And Sanitary By Preventing Ice/food From Absorbing Freezer Odors. Easy To Use And Flexible Just Pour Water Or Juice Into The Mold, Close The Lid And Place It In The Freezer And Youll Have Ice-cubes. Comes With 2 Large Ice-cube Trays. Cups Of Ice Are Great For Chilling Cocktails, Whiskey, Tequila, Vodka Or Other Less Diluted Drinks. You Can Customize Your Favorite Flavors By Adding Fruit, Ice Crea