Features: 1. **Long-lasting Heat**: Enjoy up to 10 hours of continuous warmth with our disposable hand warmers, perfect for keeping you cozy during cold winter days. 2. **Easy to Use**: Simply open the package, peel off the backing, and stick the patch inside your clothing or on your hands for instant heat within 15-30 minutes. 3. **Comfortable and Fresh**: Our hand warmers are designed with odor-absorbing materials, ensuring a fresh and comfortable experience while you stay warm. 4. **Versatile Application**: Ideal for outdoor activities, sports, or just staying warm at home, these portable heating patches are perfect for any situation. 5. **Reliable Heat Insulation**: Made with sodium chloride and vermiculite, our hand warmers provide stable and effective heat retention, keeping you warm in any weather. Our hand warmer contains sodium chloride and vermiculite. It can provide lasting and stable heat. It has good heat insulation performance and helps retain heat. Absorb odors and keep fresh and comfortable during use. Its usage method is very simple: 1. After opening the package, take out the patch and stick it on the inner side of the clothes. You can also stick it on the fabric and wear it on your hand to warm it up. The patch will start up within 15 to 30 minutes. The heat preservation effect can last for 10 hours. Quickly warm up to make you comfortable in cold weather. Continuous heating for up to 10 hours, all-weather heat preservation, stable and reliable.