1. Military Shielding MaterialCopper nickel is a popular insulative metal due to its high electrical conductivity and effectiveness in signal reduction. Our faraday fabric is made of 20% copper nickel. Shielding rating from 10KHz to 30Ghz, surface resistance 0.05Ohm/sq, shielding effectiveness: 80 90dB, operating temperature 4℃ 85℃, thickness: 0.08mm, blocking 99% of wireless frequencies. 2. 99.99% Upgrade ProtectiveFaraday fabric is made of polyester, copper and nickel, highly electrically conductive, RF/EMI/EMF/IF blocking. Fabric has undergone a major upgrade by adding a double layer copper layer and reducing the polyester fiber, thereby obtaining stronger protection, up to 99.99% protection. It can effectively block WIFI, bluetooth, GPS and RFID. 3. Superexcellent Diy ToolsThis signal shielding fabric can be sewn into various shapes and used in many places. Such as maternity clothes, radiation protection suits, radiation protection curtains, blocking bags, radiation phone cases or laptop shields, mainframe chassis covers, and is widely used to make RFID antitheft wallets, card bags, passport covers and so on. 4. Satisfactory Practicality on Various OccasionsAs disruptive signals can come from inside or outside the home, more and more homes are using these faraday fabric to create enclosures against exposure to unwanted signals. This versatile fabric is perfect for crafting signalshielded rooms, wall coverings, tower emf shields, communication base stations, and wireless transmitting devices.