... -tech nanometer ice-pad material Product Size: 15*25cm,20*35cm,25*35cm,30*35cm,30*40cm ,40cm*45cm,90*90cm, 90*140cm,ect ... because of the high temperature.6,When using as a laptop pad, the re-crystallized granules might be bigger because of ... the high temperature of laptop. It’s normal phenomenon and improved by using warm water ...