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Reusable Ice Packs for Coolers - Long Lasting Freezer Blocks for Lunch Bags, Portable AC Fans & Food Preservation

<ul><li>High Expansion: Crystal particles expand greatly for strong, long-lasting cooling.</li><li>Durable Construction: Thickened PE material is leak-proof, sturdy, and space-saving.</li><li>Proper Filling Required: Leave space when adding water as crystals expand when freezing.</li><li>Fast Freezing Time: Freeze in refrigerator for approximately 2 to 4 hours before use.</li><li>Versatile Cooling: Ideal for lunch bags, food refrigeration, and breast milk preservation.</li><li>Enhances Air Cooling: Use with portable air conditioners or fans for colder airflow.</li><li>Reusable & Multi-Purpose: For picnics, travel, medical coolers, and transport.</li><li>reusable ice packs for cooler, ice packs for lunch bag, ice crystals for air conditioner fan, long lasting ice packs, leak proof ice packs, freezer packs for coolers, reusable freezer blocks, portable air conditioner ice packs</li></ul>

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Reusable Ice Packs for Coolers - Long Lasting Freezer Blocks for Lunch Bags, Portable AC Fans & Food PreservationThe Ice Crystal Box is a reusable freezer block designed to provide long-lasting cooling for cool bags, portable air conditioners, and more. Constructed from durable, leak-proof thickened PE plastic, it is sturdy, space-efficient, and easy to clean. Measuring 16x4 cm with a 200ml capacity, it contains coarse crystal particles that offer excellent expansion and high energy storage for strong, prolonged cooling. Simply add water, leaving space for expansion, freeze for 2-4 hours, and it's ready to use. This versatile block effectively preserves cold for repeated cycles, making it ideal for food refrigeration, breast milk storage, air-conditioning fans, barbecues, and travel coolers.

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