Sliding Shutters (sometimes called Tracking System Shutters) work especially well in any room, but particularly those with windows that are too big for regular Shutters such as Bi-fold windows & doors, wardrobes, room dividers, etc. not only because of their versatility, but also because of their ability to change both the interior and exterior of any property. They are available in two systems; Bi-Fold (which can be folded back along a track) or Bi-Pass (which slide in front or behind one another) both offering a perfect balance of light control and privacy.