... treatment)filler: a specific high-tech nanometer ice-pad material Product Size: 15*25cm,20*35cm,25*35cm ... cotton cloth is needed to put on the ice-pad.3, The cooling effect is relatively weak when ... or lay in the fridge ,next to the air-conditioner or other cool places to make the product crystallize ... the high temperature.6,When using as a laptop pad, the re-crystallized granules might be bigger because ...