Works Well
I really like this wrap.  To heat it recommends putting it in the microwave for one minute.  I put it in for about 2.  This stays a warm temp for me for about 30 minutes to an hour depending how I use it.  This can also be put in the freezer and used as a cold pack.  It does cover both of my shoulders and part of my back, but obviously you can position it anywhere.  It is a bit heavy, but it is comfortable and it help soothe aches and pains.  It is on par with other similar products that I have tried.
Rating: 4 stars