1、EASY INSTALLATION: 2 curtain panels per package. Each lined blackout curtain is 42 inches wide and 63 inches long with 6 grommets at the top (1.6 inches inside diameter) and fits most curtain rods. 2、Even on sunny days, these interior blackout curtains provide a truly dark sleeping environment. Protect your indoor privacy 3、ENERGY EFFICIENT: Our double insulated curtains help balance the temperature inside your home by preventing summer heat or winter chill from entering the room. 4、Soundproofing: our thick, double-panel curtain panels absorb up to twice as much sound as regular single-panel curtains, protecting you from neighbours or traffic noise. 5、MACHINE WASHABLE: These durable opaque curtains are thick, soft and easy to care for. Wash in cold water below 86F. Iron and tumble dry on low if necessary. Do not use bleach.