1.Our faraday fabric features a conductive grid design akin to a faraday cage. This unique blend of polyester, copper, and nickel creates a powerful shield against electromagnetic interference. Effective shielding of electromagnetic radiation, the shielding value reaches 99.99%. Surface resistance below 0.05Ohm/sq, average attenuation of 8090dB from 10KHz to 30Ghz. 2.99.99% ProtectionThe faraday fabric, with its effective threelayer structure, acts as a guard against signals and emissions. It provides the capability to guard your home from unwanted signal, it reduces cell phone signal intrusion, and wireless meter interference. which can effectively blocking EMF, WIFI, Bluetooth, GPS and RFID. It prevents data leakage and theft effectively. 3.Large Size for CraftingCopper nickel faraday fabric is easy to cut and sew, usage for bags, car keys and router bag, curtains, tents, etc. Effective shielding for celltowers, microwave signals, phones, smart meters, security systems, radar, military broadcast, etc and more. It can be used as an insert in the wallet or handbag to protect your credit cards from data theft. 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.