... comfortable;pervious to light,can see the scenery outside window;ventilated,maintain indoor air flow.good heat insulation effect, ... easy to installation. ------AN UP-RISING STAR IN THE WINDOW BLINDS MARKET! ItemSunscreen FabricPalce of originShaoxing,ChinaBrandSeries4000Test RequirementThrough SGSComposition30%poly ... ,RollerBlinds,Coated Curtain,Wallcloth,Wallcovering 30%poly 70%vinyl sunscreen fabric