Perfect to slip into your pocket and keep your hands warm on those cold winter days or to keep in your emergency kit just in case. Flexing a catalyst disc in the hand warmer causes the liquid in the pouch to crystalize, generating heat. To recharge, simply place in boiling water to melt the crystals back into a stable liquid. Directions are printed right on the warmer.
Just snap the metal disc to start an exothermic reaction creating heat in seconds that lasts up to 2 hours in your pocket
Simply boil to regenerate the warmer to be used again
Reuse hundreds of times
2 warmers per pack
2 sizes available, 3 x 5 and 4 x 6