aosky zebra blinds windows roller shades for window zebra blinds for windows cordless shades and blinds room darkening shades for home, office(w30 x h72, white aosky double layer roller shades and classic roller shades help establish the look and feel of a building. from single offices to the largest public areas, zebra day&night double roller blinds will enhance the performance and appearance of any space and the best blinds for windows. easy installation with universal brackets that allow side, top, or end mounting without additional parts. built-in self-leveling further streamlines installation and adjustment and easy change of operation side. easy coupling of blinds for simultaneous operation of more than one blind. the overlap of the front and back blind fabrics can absorb light and also block the view from the outside, which can be controlled freely. take in with the shade down, take in the comfortable light and wind. free adjustment: from the outside of the light and line of sight can also be adjusted according to the preferences of no stage.