... treatment)filler a specific high-tech nanometer ice-pad material Product Size 30*35cm,30*40cm , ... The surface material use PVC under special treatment and won’t fracture under the pressurization of 200kg.Notes ... :1, Prevent the ice-pad from sharp-edged ... propose, alternate use.4, The ice-pad crystallized automatically under 27°C.In hot areas, soak the ...