Introducture blinds differ by the control method (except for color shades). Usually closing them help buttons, magnets or cords. Magnets are placed inside the double -glazed windows and outside. All lamellas move along a metal lace, which passes through the magnet. The method of control through cords also applies. Here is the button does not provide for lifting the curtains, lowering them. Only turns. Such curtains put in state institutions. If the blinds are folded, it is difficult to notice them on the windows.














