Long Lasting Natural Self Heating Hand Warmer (Cover available) for Winter Warm

Long Lasting Natural Self Heating Hand Warmer (Cover available) for Winter Warm. Natural Self Heating: Activated by air oxidation of iron powder for instant, consistent heat up to 10 hours. Portable Pillow Design: Compact 5.2-6cm x 9-9.5cm size, weighing 25-35g, ideal for outdoor activities. Customizable Options: Offers OEM/ODM services with flexible customization for size, weight, and packaging. Professional Manufacturer: 15 years experience, drafting committee member for China's warm patch industrial standard. Strict Quality Control: 100% finished product inspection with sample testing every 2 hours by professional technicians. Safe & Instant Heat: Air-activated mechanism ensures safe, instant warming without external power sources. Global Shipping Support: Direct cooperation with major carriers like CMA, COSCO, and EVERGREEN for reliable delivery.