notebook ice-pad 1,below body temperature 6-7C 2,keep cool ... fabrics (waterproof treatment)filler a specific high-tech nanometer ice-pad material Product Size 30*35cm,30*40cm ,40cm*45cm ... under the pressurization of 200kg.Notes:1, Prevent the ice-pad from sharp-edged tools and fireworks. In case of ... , cotton cloth is needed to put on the ice-pad.3, The cooling effect is relatively weak when the ...