NEW Cooling Technology for Excellent Cooling Effect: Our 4" x 4" dry ice packs are equipped with the New Cooling Technology, keep your food and drinks cold for 12 to 24 Hours, these long lasting reusable ice packs are perfect for any scene, making them ideal for keeping your food and drinks chilled longer. Great for ice packs cooler reusable and long time use.Please do not freeze it for prolonged time. Safe Material & Use-friendly:Our freezer packs are made with 100% BPA-Free Non-Toxic Materials. The ice cold packs are safe for everyday use, ensuring your meals stay fresh and cool, No more mess or stress with our ice packs that you can use the ice packs repeated, great solution for your breakable ice packs & shipping needs,your great ice packs for lunch box. All-Scene Versatile: Perfect choice shipping food, camping, fishing, beach, road trips. Also, the cooler ice packs keep your food and drinks cold with no mess of melting ice. Suitable for cold packs for cooler use. This freezer packs for lunch boxes will be your great outdoor partner. Easy to Use: Soak in water for 5-10 minutes, After absorbing water, be sure to dry the water on the surface with a towel (Prevent sticking when freezing), freeze at least 8 hours and then you can use the ice cold pack for lunch box, knee injuries, seafood and ice cream, etc. Space Saving Design: The ice pack for cooler measures 4" X 4", which is smaller and easy to carry no matter you are at home or outdoor traveling and camping, the cooler ice packs is most effective ice replacement product, freezer packs is lightweight and convenient thin like a paper before absorbing water, save valuable space easily. New type of absorbent ice pack Non toxic, BPA free, thin size does not take up space After absorbing water for 10 minutes, it can be placed in the refrigerator for freezing Freeze for 12 hours and use anytime. Protect your product with 24-hour refrigeration!