It is a flexible pain relieving patch.Once applied, its ingredients penetrate the skin and are absorbed, thus stimulating blood circulation around the area of pain. Its warm penetrating action Warm relief for sore muscles, stiff neck and backaches, Long lasting and comfortable to wear. Suit for back and shoulder blades Use with easy application that leaves no residue on skin, making it ideal for everyday use. Long Medicinal Efficacy- Provides effective pain relief for up to 12 hours. Suitable Scope - Assist treatment for cevical spine,shoulder periarthritis,lumbar muscle strain,knee joint ache. Description: Ingredients: wormwood plant extract, medical pressure-sensitive adhesive, far-infrared ceramic powder, release paper Functions: promote blood circulation, relieve pain, swelling, cervical spondylosis, relieve cervical pain Usage: external use. Clean and dry the cervical vertebrae with alcohol or warm water, and apply the patch to the cervical vertebrae for 12-72 hours Caution: store in a cool place Product size: 13 * 9.5 * 0.1cm Packing list: 36/24/12Pcs* Pain relief Sticker