- To activate, just open the pack
- All natural ingredients heat up when they make contact with oxygen
- Seal from oxygen in resealable bag and reuse the next day
- Stays warm up to 5 hours
ERGODYNE
Ergodyne N-Ferno Warming Packs, Foot, 5 in x 2 in, Non-Woven Fabric Polyethylene, 40/…
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