The retractable insect screen systems have pleated nets for double cassette doors and Balconies that come with wider openings to allow sunlight and fresh air to pass but meshed closely enough to keep insects. This mosquito net is highly rich look on your windows. The mechanism in this design is quite different from comparing with the other. In this type, the fibre-glass will be folded like zig-zag and a set of ropes will be inserted in between the foldings. The zig-zag folded mesh will be pleated at one side (either at right or left) and pull towards the other end for closing.