Fabric EASY TO INSTALL: Includes white blackout curtains 2 panels set per package. Each panel measures 42 inches wide by 72 inches long, with 6 silver-colored metal grommets on top, fit rods less than 1.6 inch diameter. Suggest choose the right size after measuring your windows. MAXIMUM BLACKOUT: With black lining backing, our 100% light blocking curtains are thick enough to completely block out sunlight. These room darkening curtains provide you a real dark environment to sleep even during bright sunny day. Protect your indoor privacy. ENERGY SAVING: Our 2 layers insulated curtains help balance your room temperature by preventing summer heat or winter cold from entering your room. Ideal for saving money on energy bills. SOUND PROOF: Our heavyweight double layer curtains panels are effective on absorbing sound 2 times than ordinary 1-layer curtains, to protect you from disturbing by outside neighbor or traffic noise. MACHINE WASHABLE: These durable black out drapes are thick, soft, winkle free and easy to care. Wash in the water below 86F. Iron and tumble dry at low heat as needed. Do not bleach.