... treatment)filler: a specific high-tech nanometer ice-pad material Product Size: 15*25cm,20*35cm,25*35cm,30* ... 90*90cm, 90*140cm,ect.Product Name: summer cool cushion Material: Outlayer: Polyester Inerlayer: PVC temperature constant time: Be able ... Crystallization temperature: 27 Centigrade Feature: Environmental friendly: Non-toxic material without power supply, do not need pre-cool and economical.it ...