1. Consistent Cooling Performance: The coarse texture and expandable nature of the ice particles ensure cold storage performance, providing prolonged cooling for reusable and freezable packed lunches and beverages. Designed for repeated use, it offers longlasting cooling. 2. Durability: Made from thickened PE material, these ice packs exhibit break resistance, ensuring extended durability and reliable performance for longterm repeated use in lunch boxes. 3. Easy to Carry: The compact shape and lightweight design allow it to slide effortlessly into backpacks, ensuring hassle mobility and dependable performance for outdoor activities or daily use—ideal for portable convenience: lightweight and compact for onthego lifestyles. 4. How to Use: Add water to allow the ice particles to expand, then freeze the pack for 2–4 hours to ensure a convenient and effective method of preserving cold temperatures in lunch boxes during daily use.