The listing, Homemade Rice Warmer has ended.
These are absolutely one of the best things I have ever run across. One of my client's makes these. The outside fabric is flannel and is sewn into three compartments so that it contours to your body, unlike a heating pad, It is filled with rice, which releases a moist heat. I own one (which is shown in the picture) and it has done my back wonders. You heat it up in the microwave for two minutes and it will stay nice and warm for quite a while. Mine has stayed warm for as long as two hours when I have a cover over me. These are also great for your neck, shoulders, really anywhere you hurt as they fit to your body so well. People also use them to heat up their beds at night before they go to bed. Just heat them up, put them on your sheets, cover them up and wait about 15 minutes and your bed will be toasty warm when you crawl into it. If you have any questions at all please ask.