High-Quality Flexible Silicone MaterialMade of silicone gel raw materials, FDA approved, 100% BPA-free, Non-toxic, Food grade, Leak-free, Durable and Reusable. With a temperature resistance from -40C to 250C, the ice skull mold tray can be used in refrigerators, dishwashers, ovens and microwave ovens .Easy to Fill and RemoveSoft silicone material makes it easy to fill and remove ice cubes. Not like traditional plastic ice cube trays, which is easy to crack and age. Pick up ice cube from the freezer, stretch a little bit from the 4 corners, then you can easily pour out all the ice cubes .3D Creative Skull Shape IceThe Real-looking skull shape ice cube makes your drinks look really awesome, usually you can fill the ice tray with colourful fruits or herbs to enhance your beverage. A must-have for your Halloween party .Bring Fun to Your Daily LifeOur ice tray molds is reusable, which is very suitable and great fun for you to make ice cubes at home. It can be used all year round. Especially in hot summer and for bars or parties to make beverages .