This is a set of 20 herbal heat patches. The power of natural herbs gently warms and is expected to provide 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 clothing. Recommended for relaxation from stiff shoulders, lower back pain, and neck stiffness, as well as for cold sensitivity and warming activities. Fatigue recovery can also be expected. Warming the neck improves blood circulation, which is also effective for reducing facial puffiness. Thank you. Search terms: Heat sheet, heat patch, warming patch, warm compress 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