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Ergodyne N-Ferno® 6990 Hand Warming Packs
Ergodyne N-Ferno® 6990 Hand Warming Packs

Ergodyne N-Ferno® 6990 Hand Warming Packs

To activate, just open the pack. All natural ingredients heat up when they contact oxygen. Seal from oxygen in Zip-Loc bag and reuse the next day. Hand style warms up to 8 hours...