Eclipse Sanderson 52-Inch by 63-Inch Thermaweave Blackout Panel, Navy Single blackout window panel with black yarn woven through inner layer Blocks 99% of light, 40% of noise, and uses 25% less energy Laboratory-tested to reduce unwanted noise and light for a better nights sleep Use two window panels on a standard or decorative rod for optimal coverage; rods sold separately 100% Polyester; machine wash, tumble dry, do not bleach; imported