PE+PP,plain weaving, strong-tensile force, UV resistance, anti-corrosive, water resistance. Netting 1.5 ~ 1.6 times of window size on material. Save money. Eco-friendly product, Straight Latitude yarn and Longitude yarn sealed with high technology heater, no coating with any harmful chemicals or resins, long-life service more than 5 years. In carton per wxl: 2.65 m x183 m.