1.[Non-stick design, easy to release]-Unlike traditional rigid plastic trays, these molds are easy to disassemble, anyone can easily remove or release ice cubes from the mold. You can drink iced beverages by rotating the mold. Separating ice from the mold is no longer a difficult task.2.Food grade siliconeWide temperature range (-40C~230C). Non-toxic safety 100% BPA-free, using non-stick materials. Easy to make complete skull ice. Easy to fill, remove and clean. Microwave safe, oven safe, dishwasher safe silicone ice tray with lid.3.[Various uses] It can also be used as a mousse mold, sugar mold, chocolate, ice cream, soap making tool. It is very suitable for use in various occasions, such as parties, beaches, wine parties and holiday activities. Best for cocktails and whiskey. 4.[Slow melting speed, long cooling time]: Our big ice balls and ice cubes melt faster than ordinary ice cubes, thus bringing you a more delicious beverage experience. Stop watering your favorite drink and start using our giant ice hockey design