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Will hold heat for 30-40 minutes. Produces up to 130F of heat in just 5 seconds. Instant Portable
Features:
Features:
- 3 inches X 4 inches
- Material Specs: ISO 13485:2003 CERTIFIED
- Weather: Cold Weather
- Resusable- after each use, simply boil the heat pack to return the crystals to their liquid inchescharged inches state
