... Standard width: 24", 30", 34", 36", 42", 48", 60", Heteng Invisible Window screen netting1.Material: plastic,PP.PE low carbon steel wire ... purpose of ventilation. Fiberglass insect screen offers excellent properties of fire resistance, corrosion resistance, heat resistance, easy cleaning, good ventilation, ... different colors14 x 1416 x 1616 x 14 Fiberglass window invisible screen netting (HT-CSW-009)