PRODUCTION DETAILS Cold&Hot Patch PatchPatch -Soft, comfortable and easy to apply. USAGE This product is doctor recommended to provide immediate cooling, soothing relief from the discomfort associated with migraine, headache, fever, muscle aches, sprains, over-exertion, hot flashes or whenever you need relief. It provides immediate cooling relief in a convenient disposable product. It needs no refrigeration and is portable. Ready to use anywhere and anytime at home, at work or while traveling. EFFECTIVE TIME Lasts up to 12 hours. Safe to use with medications Great for both children and adults WARNING Do not use on damaged skin. Shipment 35 days Payment Term 30% deposit, 70% balance before shipment after prodution finished. 16 years of OEM experiences for many famous brands in China and worldwide.