... itself. After adding water, the polymer in bag will quickly absorb water and became gel. The ... , and keep the food fresh.4) For patients: lower temperature for fever, curb inflammation, alleviate pain, and ... physical therapy for strain bruise, hemorrhage and sepsis.3. UsageTo be added water into the bag, and then ... CE, SGS, MSDS, ROHS, etc. Miraculous ice bag, fill ice pack, ice pack for pet,cooler bag