summer cooling mat

Product's name:summer cool cushionModel No.:PCM4040BEMaterial:Outlayer:PolyesterInerlayer:PVCtemperature constant time:Be able to keep 8 hours continuously and can be used repeated more than 5000 times.Size:90*90,Weight:3.4KGColor:Blue,rose red,gray,greenFilling material:Phase change materialMelting temperature:35 CentigradeCrystallization temperature:27 CentigradeFeature:1.Environmental friendly:2.Non-toxic material without power supply, do not need pre-cool and economical.it has a cerfication of SGS and MSDS.3.omfortable and cool :4.the filling material takes 30 C degree, it is very suitable for body that can reduce 6 -7 C degree .Warning:1.Do not put this product under strong sunlight.2.Do not cut cool mat with sharp objects such as knife..