Specifications: Capacity: 200ML Size: Length 16.5CM, Width 11CM, Thickness 1.39CM Color: Blue Material: Environmentally friendly HDPE (shell), Polymer water-absorbing resin (inside) Product Efficacy: Place the frozen ice pack and your food in a sealed insulated bag (or box) to maintain freshness and prevent spoilage. Unlike traditional ice, these packs have a longer thawing time and do not produce excess water when melting, ensuring your food stays dry and fresh. Usage Instructions: 1. Fill the ice pack with cold water up to 80% of its capacity (avoid overfilling due to thermal expansion). 2. Freeze in the refrigerator for 5-10 hours. 3. Once frozen, place it in an airtight insulated bag with your food. 4. After use, store the ice pack in the freezer or a cool, ventilated area. Precautions: Do not heat the product. Clean with a household cleaning agent; avoid dishwashers. Avoid heavy pressure to prevent deformation or damage.