Blackout patio door curtain panel. Featuring a grommet top with a convenient wand to make it simple to open and close. The fashionable alternative to vertical blinds eclipse thermal blackout patio door curtains block light reduce noise and provide thermal efficiencies to help you save on home heating and cooling costs all year round. This short blackout panel blocks light reduces noise and saves energy. Made especially for your patio door the energy saving fabric of this curtain allows you to insulate against heat and cold.