These ice packs for cooler are designed to keep your cooler, lunch box, or evaporative air cooler chilled for extended periods Made from PE material in blue, each pack measures 5.51 x 3.54 x 0.98 inches, providing a compact size that fits easily in various settings Simply fill the ice block with water, freeze it, and place it in your cooler or to maintain a fresh, cool environment Ideal for home use, office, picnics, camping, or outdoor gatherings, these refillable cooler ice packs help preserve food, beverages, and medications safely Their medium size makes them easy to carry and store in lunch bags or coolers without taking up excessive space Features - Color: Blue - Material: PE - Size: 5.51 x 3.54 x 0.98 inches - Easy to use: fill with water, freeze, and reuse multiple times for convenient cooling - Multipurpose: suitable as ice packs for coolers, ice block for lunch box, or packs for coolers and evaporative air coolers - and eco-friendly: no electricity needed, helping reduce power consumption while providing cool air - Portable design: lightweight and compact, perfect for office desks, bedrooms, living rooms, or outdoor activities - Helps maintain freshness: supports food preservation during travel, picnics, or daily lunch storage - Safe and leak-resistant: constructed with reliable materials to prevent spills and ensure safe usage Using these refillable ice packs is straightforward: fill the pack with water, seal it, and freeze until solid Package Including 4 x lunch box ice packs