These heaters can be warmed in the microwave or the oven hundreds of times and stay warm in a pocket for almost an hour. 

Flax Seed Hand Heater

C$10.00Price
  • Microwave: 

    Heat 1.5-2 minutes. No more than two minutes

    Oven:

    Set oven to 200. Heat warmer for 5 minutes. Remove and shake. put back in the oven for 2 more minutes.  

     

    However you warm it, be careful not to overheat it.