Icicle-Green King Cube Ice Trays,100% Food Grade Silicone Ice Tray Made of durable and long-lasting 100% FDA Food Grade silicone; Silicone mold releases the ice easily and cleanly; Dishwasher safe & BPA-free. Fill with water or juice, and then place in freezer. Flexible silicone trays allow ice to pop out easily. The ice mold is made from heat and cold resistant silicone, so it's freezer and oven safe. King Cube Ice Trays, Creates 8 jumbo 2-inch square, slow melting ice cubes.-A must have for cooling bar drinks, pitchers, punch or any beverage; jumbo size reduces dilution. Note: Don't fill up the water all the way, as ice expands, it will overfill the mold. Just leave a bit of room empty at the top.