1. LongLasting Cooling Power: Keeps contents chilled for hours by maintaining extra cold temperatures to protect drinks, food, and perishables during outdoor activities such as fishing, beach trips, sports events, or travel. 2. Size for Coolers Lunch Boxes: Each pack measures 11.5 x 4 cm; compact and lightweight at 100 g, they fit neatly in most coolers and lunch bags, providing flexible cooling without occupying excessive space. 3. Sturdy PE Material: Safety and leakresistant construction designed to withstand freezing and thawing cycles while preventing leaks, suitable for use in refrigerators, coolers, and portable ice chests. 4. MultiPurpose Use: Ideal for home kitchens, picnics, camping, and more; use to keep beverages cold during sports or outdoor adventures, preserve food freshness, or add to your freezer for cold storage. Use scenarios: On fishing trips or at the beach, keep drinks and perishables cold for longer. During picnics or camping, maintain beverage chill and preserve food freshness. In lunch bags or portable coolers for daily meals during travel or sports events.