SmartBlock blackout curtain liners are designed to turn any standard curtain into a light-blocking and energy-efficient window treatment. These white polyester liners feature a rod pocket design and are specifically sized to work with 108-inch length panels. Key Details: • Size: 40" W x 104" L (Fits 108" L panels) • Material: 100% Polyester Style Tags: blackout, curtain liner, energy saving, thermal, noise reducing, white, rod pocket, home decor Thank you for your interest in the item listed. Please do not hesitate to ask for more details. All of my items are stored in a climate controlled space, generally odor free, non smoking and free from mildew. Colors may appear different on different devices.