The Blackout EZ Window Cover is the only window treatment that completely darkens the room. It's exclusive Velcro Fastening System seals tight around the window frame, without the gaps you have with blackout curtains , liners, shades and blinds. The Blackout EZ Window Cover installs in minutes. The Blackout EZ has printed cutting lines that guides you to a perfect fit. Unlike black out curtains, liners, blinds and shades, the Blackout EZ requires no measuring, tools, sewing, screws, hooks and no rods. Only the Blackout EZ Window Cover has the Exclusive Duplex Fabric. The white side reflects the sun while the black side totally darkens. The fabric is specially coated to allow the adhesive backed Velcro to stick in the heat of summer and the cold of winter. The fabric is practically indestructible but cuts easily with scissors. The Blackout EZ Window Cover is easy to use and care for. Simply place the blackout EZ over the window and press around the edges to seal. The Blackout EZ folds neatly away when not in use. The special fabric wipes clean with a damp cloth unlike other black out window treatments that require washing and dry cleaning. Best of all, you can keep your decorative window treatments. The Blackout EZ attaches directly to the window frame underneath your current window treatments.