The black blackout curtains are made of high-precision polyester fabric, which is durable, heat-resistant, breathable and soundproof. Its texture is smooth and soft, thread trimmed and wrinkle-free, not easily deformed. Blackout curtain panels can block 90%of ultraviolet rays, relieve the irritating damage caused by strong light and high temperature in time, and has a certain heat insulation effect. These room darkening curtains can protect indoor privacy and provide you with a safe and healthy sleeping environment.