Many Didn't work
I was excited to try these for easing back pain and cramping while at work. They are super easy to use and lay very flat. They give off a mild amount of heat, but if you keep them in one place long enough it does help some. And I'll take any relief I can get. And you can reuse them! If I dont use them for longer than a few hours, I just seal them up in a ziplock to use again another day.<br /><br />Unfortunately, I am finding that about half of the heat pads in the box I recieved do not work. On several occasions, I have opened them at work to find that they never release any heat at all. Really a shame because otherwise, these would easily be a staple in my house.
Rating: 3 stars