- Reusable Freezer Blocks: An eco-friendly and cost-effective choice, designed for repeated use in lunch boxes, coolers, and portable air coolers. Reduce waste while saving money. - Excellent Cold Retention: Engineered to maintain low temperatures for extended periods, these freezer blocks are perfect for keeping food and beverages chilled during transport. - Compact and Travel-Ready: Measuring just 6.1 inches, these freezer blocks easily fit into bags, boxes, and small compartments, making them ideal for school, picnics, or outdoor adventures. - Multi-Scenario Use: Versatile design allows compatibility with air conditioner fans, lunch bags, beach coolers, camping kits, and picnic baskets. Keep your food fresh wherever you go. Use Scenarios: 1. Pack a lunch for work or school: Place these freezer blocks in your lunch bag to ensure your meal stays fresh and cool until you're ready to eat. 2. Day out at the beach: Use these blocks in your cooler to keep drinks and snacks refreshingly cold, even on the hottest days. 3. Camping trips: Add these freezer blocks to your camping gear to keep perishables cold, ensuring you enjoy fresh food throughout your outdoor adventure.