... 3.Certificates:CE,SGS,MSDS 4.Supply oem Specifications Mini Hand Warmer For the chilly winter Product Description: 1. ... school, primary school students and other fields pepeoleInstant PVC Hand Warmer. a) Bend the metal plate, become ... be molded.How to reuse: a) Wrap the hand warmer with a cloth b) Put in a ... until all crystals are dissolved. c) When the hand warmer is completely clear, take it out of the ...