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Custom Package Self-heating Foot Warming Insoles Comfy Foot Disposable Heat Warmer

Model: Wormwood warm foot pad insole Function: Keep warm Place of Origin: Mainland China Size: M size-suitable for 35-39 shoe sizes, L size-suitable for shoe sizes 40 and above Shelf life: 3 years Product type: warm foot patch Fever time: 10 hours Maximum temperature: 63℃ Heating-up time: 5-10 minutes
self-heating foot insole