- Surface resistance below 10 ohm per cm; shielding performance from 55 to 70 dB; shielding efficiency up to 99.9999 percent. - Superior shielding performance: The Faraday Fabric is a highly conductive material for shielding EMF, EMI and RF signals. It effectively blocks WiFi, Bluetooth, cellular signals, GPS and RFID. - Elastic material: Silver coated nylon fabric with vacuum sputtering. Highly electrically conductive, very soft and flexible. Ideal for shielding windows and walls, and suitable for lining hats and clothing or draping over a bed. - Size and packaging: Size 39 x 59 inches (100 x 150 cm). Each piece is 150 cm wide and sold by 100 cm long. If you order more than 1 quantity and need continuous length, please indicate in seller notes or we will send each piece as 100 x 150 cm. Use scenarios: shield a room or workspace from EMF/RF signals; line curtains, walls, hats, clothing or bed coverings for personal shielding; create portable shielding setups for travel or temporary protection.