An object of the present invention is to provide a blind roll curtain ventilation if blind role by changing the height of the curtains went better light than no part of such a blind roll curtain also open the better. A two guide rails that are installed on the left and right of the window - Le bracket 1, 2 pieces of guide rails - Le bracket above the moving bracket 2 capable of moving up and down, and a blind 4 to be attached to the mobile bracket to form a mobile blinds as characterized by adjusting the height of the blind by moving the movable bracket to the top and bottom. .BACKGROUND 2
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