... -pad 1,below body temperature 6-7C 2,phase change material 3,cool effect is obvious within seconds 4 ... treatment)filler a specific high-tech nanometer ice-pad material Product Size 30*35cm,30*40cm ,40cm ... of 200kg.Notes:1, Prevent the ice-pad from sharp-edged tools and fireworks. In ... when the ice-pad is liquid. For better propose, alternate use.4, The ice-pad crystallized automatically under ...