Hunter Douglas Window Shades and Blinds fitting securely into the window frame, the Duette® LightLock™ system is the only one of its kind to provide such darkening effects. Its innovative U-shaped side channels feature a black, ridged interior surface that traps and absorbs light of all strengths and from all angles, leaving rooms nearly dark. Call Innovative Window for the top of the line Room Darkening Window Shades and Blinds.
