TEHAUX 4 Pack Ice Packs for Lunch Box Slim Reusable Freezer Bricks for Coolers Keep Food Fresh and Cold for Hours for School Work Picnic Camping Blue

["SPACE SAVING SLIM DESIGN: These thin freezer bricks fit perfectly into crowded lunch bags or small cooler boxes without taking up valuable room for your meals ensuring your containers stay chilled throughout the day","LEAKPROOF COOLING SOLUTION: Featuring a secure screw cap and PE construction these reusable ice blocks prevent messy spills in your backpack while maintaining a steady low temperature for breast milk snacks or beverages","EASY WATER FILL OPERATION: Simply add water once to the 14x9x2.5cm containers to transform them into solid cold packs that provide consistent thermal performance for outdoor activities or daily office lunches","VERSATILE FOOD STORAGE GEAR: Ideal for students commuters and hikers these cooling packs adapt to various scenarios from keeping sandwiches crisp in a school bag to preserving drinks during a beach trip","SAFE PE MATERIAL CARE: Made from food grade PE material these blue cooler inserts are easy to wipe clean after use and should be for at least 8 hours before being placed in your insulated carrier"]