Power Surge Relief - This bag will provide welcome relief whenever hormones, menopause or medical treatment make your body feel like it is in a meltdown.   Simply hydrate the polymer crystals by immersing the bag in water for about 15 minutes and lightly squeezing out the excess water.  It works by evaporation of water from the hydrated crystals.  The bag may be used as is or kept frozen for even more cooling relief. The bag is made from 100% cotton fabric and approx. 3" x 5" in size.  The crystals are non-toxic, reusable and long-lasting.