TheraPearl Children's Pals, Pearl the Pig, Non Toxic Reusable Animal Shaped Hot Cold Therapy Pack, Flexible Compress for Injuries, Swelling, Pain Relief, Bee Stings Soothing pack perfect for swelling, bee stings, bad days, and more Easily freeze for two hours to feel cooling relief or microwave for 10-15 seconds for penetrating heat Reusable hot and cold compress with gel pearls that conveniently hold temperature for the doctor-recommended time of approximately 20 minutes For product longevity, store reusable pack in an airtight container or bag in the freezer Latex-free BPA-free phthalate-free