Sanli Capsimax Thermal Plaster is a therapeutic adhesive patch designed to provide localized heat therapy. Each pack contains 4 plasters measuring 12x9 cm, ideal for treating muscle aches, joint pain, and providing warming relief to affected areas. This product is a medical/therapeutic device that uses thermal properties to provide pain relief. The plasters work by generating warmth when applied to the skin, helping to increase blood flow to the affected area and potentially reduce muscle tension and discomfort. As with all medical products, it should be used according to package instructions or healthcare provider guidance.