... 1.Heat therapy for relief of pain and backstrain 2.MSDS,FDA, EN71,Non-phthalates free certificate Oval shape hot pack ... as per client pantone FeatureReusable, easy to carry, new designCertificateEN71,MSDS,FDA,ISO9001UsageHeat therapy for relief of pain and backstrainGreat for ... cold air away from the pack. If using it for hand warmer use, put it inside your pocket for instance.3 ...