Fantasti
I bought some ice packs from my chiropractor.  Got home and froze and they stayed a liquid.  They worked by not near as good as these.  I asked him next time in about them and he said oh you can't get the good ones now it will be 3-4 yrs.  Production ceased.  These freeze pretty solid by I thaw them out for a few minutes before using.  They are pretty big to which is great.
Rating: 5 stars