These mosquito net is nothing but same mechanism as like the roller shutter systems. Strong panels will be screwed to hold the mesh on left and right side of the window net. A round pipe will be cut to the size of window width and the mesh will be rolled in it and fixed tightly with spring systems and finally inserted into a round alloy panel. This will be fixed as the top panel of the windows. An plate will be attached to the outer end of the mesh and it contains a center hole in which a thread will be tied to pull and push the mesh from top to bottom.Phifer Quality Fibre-Glass is the only material can be used in this roller-shutter design. This model can be fixed either to the wooden window as well on the Aluminium / UPVC window.