... more than thousand times 1.Product informationMaterialPVC,Sodium AcetatecolorRed,Orange,Yellow,Pink,Purple, Blue, Green & Clear CertificateCE,FDA,MSDS,EN71/ ... times by following the instruction. 2)To recharge Place the heat pad in boiling water with cloth below(Note: prevent the ... all the crystals disappear.Usage for cold compress: Placed the heat cold pad in the refrigerator (not freezer), don’t flex ...