Moondream 2-in-1 EMF Radiation Blackout Curtain, 51Wx102L Inch, Grey (Pepper MC7305), Grommet, 1 Panel New Technology Curtains - 2 in 1 Solution: EMF Shielding And Blackout Effect - Tested in independant Laboratory* Efficient Barrier Against Radio Frequencies from the Exterior - Works On Cell Phone Waves, 3G, 4G, Wifi, Bluetooth and Relay Antennas Reduction of about 10dB on average within a range of 800MHz to 5200MHz* Blackout Effect up to 100%* - Made in Europe (Poland) with the utmost care One panel: 51-Inch Wide by 102-Inch Long - Rust Proof Grommets (1.6 inch inner diameter) - Dark Grey Color - Elegant stitching - Sold as Single Panel