Instant Heating Natural Self Heating Hand Warmer for Cold Weather Activity Warmer Patch

Instant Heating Natural Self Heating Hand Warmer for Cold Weather Activity Warmer Patch. Patented Openwork Design: Exclusive design with two heating cores per pouch, reusable shell for herbs in spring. Natural Self Heating: Uses iron powder oxidation principle for safe, consistent, and pleasant warming effect. Customization Available: OEM and ODM services available with flexible customization options from samples or designs. Industry Standard Member: Company is a main drafting committee member of China's warm patch industrial standard. CE and MSDS Certified: Products meet strict quality standards with CE and MSDS certifications. Free Sample Offer: Samples are available for free testing, with freight fee covered by the buyer. Fast Delivery: Located near Qingdao Port ensuring fast delivery and excellent service.