1. FOOD-GRADE SILICONE: This ice cube trays were made of food-grade silicone which is non-toxic and safe to use. They will not give any smell or odor to your ice or drinks. 2. WOW YOUR FRIENDS: These rarely found silicone molds ice trays come with cool SKULL-SHAPE Molds, and you will surely wow your friends and make your party more fun! 3. RIGHT QUANTITY: You will have 2 ice trays for your order and each of them has 4 skull molds. This means if you use it for yourself, you can just make the ice once each week or you can also host a cool party with the skull ice cube with your friends at home! 4. SEE SKULL MELTING: The size of each skull ice ball is 1.9 inches which is perfect for most glasses, you will be amused to see how the skull melts in your glass, which will make you and your friends even drink more! Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.