... , SGS, FDA, ISO13485...Also known as: cold hot pack, gel pad, gel pack, compress pack, microwavable hot cold pack, etc. MaterialPVC, PE+PA or ... . 4. non-toxic, non-caustic, reusableUse manual:for hot use, soak it into hot water approx. 80-90 degree Celsius for around ... 3 minutes; for cold use, please place it in the ...