The window net is made of high quality fiberglass, vinyl coating surface, eco-friendly and non-toxic, tear-resistant and corrosion-resistant, UV-resistant, flame retardant, an ideal replacement for your window mesh. Window screen mesh is 120 X 250 cm, fits to windows and doors screen max to 1.15 m x 2.45 m,large enough coverage area, easy to cut into any size and shape with scissors to fit window, NO wire drawing Insect-Proof Screen Door Net-Mesh density: 17 x 16,allowing light transmission and air circulation, and prevent flies, mice, butterfly, mosquitoes and other harmful insects through Suitable for window screen repair replacement, patio screen, porch screen, pool screen, garden screen, providing an ideal living environment for your family 100% SATISFACTION - We are confident that you will love the quality and convenience of our window screen! Contact us if any problem, we provide timely response and perfect solution, please dont worry about the creases, the creases will disappear after hanging the fiberglass material for a period of time.