Polyester Imported SET DETAILS: Set of 2 total blackout curtain panels per package. Each lined curtain measures 42 inch wide by 45 inch long with 6 silver metal grommets (1.6 inch inner diameter) on top, easy to install and slide. 100% LIGHT BLOCKING: Double layer dark out bedroom curtains are thick enough to completely block out sunlight and UV to let no light come in. Bring you a full room darkening environment for good night sleep, afternoon nap and weekend lie-ins. NOISE REDUCING: These window treatment curtains work better in sound proof and privacy protection than ordinary 1 layer curtain. The material feels soft with no chemical smell, safe for kids room and nursery room. ENERGY SAVING: These energy efficient living room curtains with black liner backing can reduce room heat and cold loss through window during winter and summer, help cut your energy bills. EASY CARE: these privacy drapes are machine washable below 86?; Gentle cycle; Do not bleach; Tumble dry low; Warm iron.