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Custom Self-Heating Adhesive Shoulder Warmer Patch
Product name: Self-heating air-activated shoulder warmer
Heating duration: 10 hours
Average temperature: 52℃
Highest temperature: 68℃
Size: 100mm x 180mm
Shelf life: 3 years
Material: Iron powder, vermiculite, activated carbon, water, inorganic salts, and water-absorbent resin
