Features: Natural Ingredient: Made with natural herbal ingredients, our Nano-microneedle joint patch provide soothing comfort through self-heating technology to help alleviate joint stiffness, muscle soreness, and knee pain. Breathable: The lightweight, breathable fabric,ensures a snug fit while staying securely in placeno slipping or falling off Long-Lasting Relief: Enjoy continuous heat therapy for over 12 hours to eases muscle tension and improve circulation. Works effectively on the back, shoulders, legs, and joints. Flexible & Comfortable: The soft, stretchable fabric conforms comfortably to your body, allowing easy application and removal. Just peel off the backing, apply to the affected area, and gently massage for 1-3 minutes for enhanced absorption. Versatile: The Knee Pain Relief Patch, Simply clean the skin, remove the protective film, and apply for instants relief. The thin, breathable design moves with you, ensuring unrestricted motion throughout the day. Notice: 1.Actual color may be slightly different from the image due to different and light effect 2.Please allow 1-3cm deviation due to manual measurement Safety Tip: If redness or a warming sensation-occurs, discontinue use until skin returns to normal. Quantity: 4pcs/Box Thickness: 0.4mm Package List: 4/8/12pcs Nano-Microneedle Joint Patch