⇍Safe and Healthy: Our neck heating patches are made with natural Chinese herbal ingredients. Each of our herbs has been carefully selected to be safe and non-irritating to use. ⇍Easy to Use: This mugwort patch has a good self-heating design with good stickiness and can be easily and firmly attached to the skin. Just stick it on your knees after cleansing your skin. ⇍Relieve Fatigue: This moxibustion cervical patch releases warm and comfortable heat to help you relax your muscles and eliminate f