Sun Zero Randall Thermal Insulated Energy Efficient Grommet Curtain Panel, 40" x 84", Plum 100% Polyester Imported Thermal insulated fabric Room Darkening technology blocks out some unwanted light while enhancing privacy Energy efficient design reduces energy lost through your windows by up to 50% Thermal insulation help keep summer heat and winter chill out of your home Noise reduction up to 25% helps you get a sounder, more uninterrupted sleep Built-in metal grommets fit curtain rods up to 1.5" in diameter