100% Polyester LIGHT BLOCKING - Eclipse Room-Darkening curtains are designed to block harsh sunlight rays, while still providing beautiful ambient lighting in a room. Perfect for your living room, bedroom, kids room, nursery and more! ENERGY EFFICIENT - Patented Thermaweave technology feature blackout fibers woven into soft, drapable fabric to create a stylish, triple-weave technology thermal curtain. Each panel measures 52" wide (2 panels per pack). THERMAWEAVE - Technology designed to block out intrusive sunlight, reduces unwanted noise, and offers thermal benefits. Providing an insulated barrier against summer heat and winter chill to balance your room temperature and save on energy bills. EASY SET UP - Brushed nickel grommet design fits any standard of decorative rod for quick and easy installation. Ready to be hung right away. Fits a rod up to 1.25” in Diameter. CARE INSTRUCTIONS - Machine Washable