• Unique gel design automatically absorbs moisture for an effective and continuous cooling effect for pain relief and cooling • Long lasting freshness, sufficient ice power, and longer freshness retention time • Perfect for keeping food fresh and cold during picnics, travel and outdoor activities. Just place the gel ice pack with food in the cooler box • Automatic water absorption, save time and effort. Simply put it in your aquarium, it will automatically absorb water without pouring water • Triple-layer composite film resists tearing and protects your ice pack from impact and damage during shipping