VELUX Original Roof Window Anti-Heat Awning Blind for 101, 102, 104

No tape measure required. For the right size, find the window code reference located at the top of the open VELUX roof window Compatible with VELUX roof windows with reference codes: GFL 101, GFL 102, GFL 104, GGL 101, GGL 102, GGL 104 Stops strong sunlight before it reaches the window pane, reducing heat in-take by up to 77% Manual operation with hooks - while not in use, the blind rolls up out of sight under its casing. Easy installation from the inside Does NOT fit solar and electrically operated VELUX windows, smoke ventilation windows and windows with later installed motors or ventilation kits.