Foot warmer patch 2pcs/bag

Foot Warmer Foot Warmer Warm Baby Fever Sticker, Warm Sticker, Warm Sticker, Heating Insoles, Foot Sticker, 2 pieces/bag ▸ Product form: self-heating patch for feet ▸ Packing: Individually sealed bag (2 pieces/bag) ▸ Heating principle: oxidative heating technology ▸ Aging parameters: continuous fever for about 8-10 hours ▸ Safety standard: QB/T 4552-2013