... menorrhalgia, stomach trouble, menstrual cramps, cervical vertebra trouble... Hot/Cold Pack Cold compress relieves headaches, fevers, toothache, sunstroke, scalding, muscle ... offers really soft and smooth sensations Tech Specs: Inner: PU Gel Outer: Polyester taffetaSize: 16.5*11.5cmBoiling (5-10 ... 600W, 30 sec-1 min.) Heat up to approximately 48, Ice-free bag, remain soft up to -20CE, MSDS, FDA ...