Eclipse Canova 42-Inch by 21-Inch Thermaback Blackout Scallop Valance, Burgundy Single blackout window valence with foam backing 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 Measure window before purchase and valance width should be twice the width of the window (or purchase two valances) to achieve the ruffled look.