Features 1. **Long-lasting Heat**: Enjoy up to 10 hours of continuous warmth with our Disposable Warm Patch, perfect for keeping your hands, feet, and body cozy during cold winter days. 2. **Safe & Effective**: Made with sodium oxide and vermiculite, our heat pack is designed for safe use, providing effective warmth without any risk. 3. **Easy to Use**: Simply open the outer bag, peel off the backing, and stick the patch inside your clothing for instant heat that lasts up to 18 hours. 4. **Portable & Convenient**: Lightweight and compact, these warm patches are easy to carry, making them ideal for outdoor activities, travel, or daily use in chilly weather. 5. **Versatile Warmth**: Perfect for warming hands, feet, or any part of your body, our patches ensure you stay comfortable and warm wherever you go! Our warm patch contains sodium oxide, vermiculite, which can be heated for a long time, safe and effective, up to 10 hours of high temperature, warm hands, bodies and feet, and warm the whole body. Its use method is very simple: first take out the patch, open the outer bag, tear off the back film, and then put the warm sticker on the inside of the clothes, the thermal insulation effect can last 18 hours. After use, the chemical reaction releases heat, raises body temperature, warms hands and feet, and ensures that you are always warm when you go out.