Porta Brace Polar Heat Packs, Pack of Twenty Four, (24)

• Air activated warmers are placed inside polar cases to keep equipment warm. • The heaters are throw-aways and heat up to 130 degrees for more than 6 hours. • The heaters are safe and odorless, they contain iron powder, water salt, activated charcoal, and wood fiber. • Also note that they work great for keeping your hands and feet warm.