Hot and Cold Pack Cold compress: headache, fever, toothache, sunstroke, scald, muscle scuffing, sprain, trauma haemostasis, beauty etc.. Hot compress: arthritis, rheumatism, menorrhalgia, stomach trouble, cervical vertebra, sciatica, and strain of lumbar musclesetc.. Size: 20x10.5cm170gPVC/NylonSize: 27.5x13.5cm170gPVC/NylonSize: 28x18cm700gPVC/Nylon