Ice-Heat-Pack-3M-N1576-The-3M-Nexcare-ColdHot-Therapy-Pack-Traditional-N1576-offers-a-reliable-and-reusable-solution-for-both-cold-and-heat-therapy-Ideal-for-alleviating-back-pain-menstrual-cramps-and-flu-symptoms-this-pack-features-a-soft-skin-friendly-cover-for-added-comfort-It-is-easy-to-use-simply-heat-in-the-microwave-or-cool-in-the-freezer-as-needed-The-non-toxic-gel-filling-ensures-safety-for-all-users-making-it-a-versatile-addition-to-any-first-aid-kit-Application-is-ea.