Cold material molds gel to keep cool

Specifications of cold gel packs for keeping cool: high endurance ice pack stored in the freezer. Cold packs are used inside insulin and medication transfer bags that need to stay cold. The pack is pre-filled with gel that responds quickly to cooling to freeze in a short period. The pack retains cold for approximately 8 hours. The pack must be used when fully frozen. Consider using an insulator between the pack and the medical materials to be cooled. The pack is designed for multiple uses. Available in several sizes: Size Dimensions Small 11×18 cm Medium 15×23 cm Large 16×26 cm