FEATURES & BENEFITSReady for immediate useAeroCool Cool Relief Cold Patches are immediately ready for use no pre-chilling or freezing required.Adhesive PatchesCool Relief Cold Patches can simply be affixed to the site and remain for up to 2 hours giving soothing relief with the powers of menthol.This product is not a substitute for direct medical attention from a healthcare practitioner. Always read the label and follow the directions for use.