Features Long-Lasting Pain Relief: The self heating technology delivers deep warmth to address muscle pain, arthritis symptoms, sprains, bruising, and joint pain. Heats up quickly and provides hours of continuous relief. Soft Fabric with Strong Adhesion: Made with breathable, flexible material, each pain relief patch conforms comfortably to your body and stays securely in place during movement. Can be worn discreetly under clothing without irritation. Simple Application & Safe Use: Clean and dry the skin, peel off the protective film, and apply directly to the painful area. Replace once every 24 hours for best performance. Suitable for external use only and safe for everyday pain management. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Quantity: 6/12/18pcs Package List: 6/12/18pcs Heat Patch