Independently U.S. laboratory testing certifies this curtain is 99.8% efficient in blocking out the light! The perfect sidekick for movie marathons and lazy Sunday sleep-ins, room-darkening curtains keep entertainment areas almost as dark as the theaters. This heavyweight curtain panel features a superior, triple-weave fabric construction that blocks out light and stops heat and cold from penetrating through the density of its construction, which invisibly integrates black yarn into the pattern of colored yarns. This curtain panel is soft to the touch and compliments any room decor. An attachable wand can be positioned on either side for easy opening and closing. Each curtain panel has 8 grommets (1.5” inside diameter). It also features 1" side hems and a generous 5” bottom hem. Pull it across your window and voila! A blackout curtain that really works! This superior fabric is 100% easy-care polyester. Machine washable. Tumble dry low. Imported.