1.Microwavable,reusable gel pack 2.hot or cold compress to painful area 3.Certification ... MSDS, CE, ISO13485 4.supply OEM cold hot pack Characteristics: 1. This product is made up of high polymeric ... , menorrhalgia, stomach trouble, cervical vertebra trouble, sciatica, and strain of lumbar muscles etc.Usage Cold compress:Use after put in the ...