gel pack Supply OEM a health care product for each family Well-sold product. Hot and Cold Gel PackApplicationCold compress: headache, fever, toothache, sunstroke, scald, muscle scuffing, sprain, trauma haemostasis, beauty etc.Hot compress: arthritis, rheumatism, menorrhalgia, stomach trouble, cervical vertebra trouble, sciatica, and strain of lumbar muscles etc.Characteristics 1.no side effect to ...