This is a set of 20 herbal heat patches. The power of natural herbs gently warms and is expected to have a relaxing effect. It's thin like non-woven fabric and adheres firmly to the skin, so it won't peel off from rubbing against clothes. Recommended for relaxation of stiff shoulders, lower back pain, neck stiffness, and for cold sensitivity, as well as for warming activities. Fatigue recovery can also be expected. Warming the neck improves blood circulation, which is also effective for reducing facial puffiness. I use these myself, but I accidentally bought too many, so I'm selling them. Search words: Heat sheet, heat patch, warming patch Herbs, aroma, relaxation, refresh, fatigue recovery, stiff shoulders, lower back pain, neck stiffness, knee pain, cold sensitivity Trial, not sticky Warming activities, puffiness reduction, good sleep, desk work, eye strain