GOOD BLACKOUT EFFECT: These soft and durable indoor silk satin room darkening curtains are made of innovative triple weaving technology (The black thermal insulated fabric is woven between two layers), which can ensure 85%-99% blackout ability. The darker the curtains colors the better the blackout effect. THERMAL INSULATED: Thick thermal insulation faux silk curtains help prevent energy losses by hot summers and cold winters, and block ultraviolet radiation. Protect your furniture, floors, and artwork from the ravages of the sun. SOFT SILK SATIN CURTAINS: Our faux silk curtains are made of 250GSM (250 grams per square meter) high-quality silk satin fabric. This delicate fiber can be woven into truly incredible, beautiful and luxurious satin curtains. At the same time, these blackout curtains are silky, soft, wrinkle resistant, thick, very pleasant to touch and free from chemical smell. NOISE REDUCTION: The noise reduction effect of these faux silk blackout curtains is very good. It can save your energy costs and give you a good sleep and make you energetic every day. EASY CARE: Machine wash cold. Delicate cycle with mild detergent. Do not bleach. Not easy to fade.Tumble Dry Low. Cool iron to remove potential wrinkle from packaging.Two 8 silver stainless steel grommet panels; each panel is: 52 W X 84 L. PVC packaging bags, clean labels.