Food-Grade Silicone Material -- These large ice molds are made with high-quality food-grade silicone, durable, reusable, and dishwasher safe. The silicone ice mold is soft and features reinforced sides to ensure stability and shape integrity, making it easy to mold and release ice cubes. Big Size Ice Mold for Ice Bath Tub -- Create large ice cubes with our oversized ice block molds to keep your cold plunge chiller cold for longer, reducing the need to frequently add ice. Large ice packs are also ideal for camping, fishing, or short trips to keep food fresh for extended periods. Save Time and Money -- Make your own large ice cubes at home using these silicone molds. Each mold produces up to 2.3 lbs of ice, and with a set of 5 molds, you can make up to 12 lbs of ice at once. Eliminate the need to purchase ice from stores, saving time, energy, and money. Easy to Use -- Fill the mold with water, leaving some space at the top for expansion. Place in the freezer for 24 hours. Once fully frozen, remove the mold from the freezer and allow it to sit briefly before easily releasing the ice cube. Multiple Uses -- These large ice molds are not only ideal for making ice cubes for ice baths but can also be used as cake molds or baking molds. The silicone material is high-quality, food-grade, and safe for food preparation.