✿【Highest Quality Components】Faraday cloth is made of polyester, metallic copper and metallic nickel. Copper nickel is a popular insulative metal due to its high electrical conductivity and effectiveness in signal reduction. Surface resistance: below 0.05Ohm/sq, average attenuation of 80-90dB from 10KHz to 30Ghz. Effective shielding of electromagnetic radiation, shielding value reaches 99.99%. ✿【RF Signal Blocking】High-shielding nickel copper composition blocks high frequency electromagnetic, powerful conducting material that can be used for shielding against EMF, EMI and RF signals. Its composition effectively blocks WIFI, bluetooth, cell signals, GPS and RFID. Anti-electrostatic/esd /radiation/radiowave/microwave shielding. Reduce the radiation generated by 5G base stations. ✿【From Secret Operations】The need to preserve, protect and extract digital information in devices and technological privacy makes the Faraday Fabric a must for government and military organizations. The fabric shield effectively secures communication and enhances digital isolation during discreet operations. It blocks electronic signals, defends against emps, and is ideal for signal-proof rooms or tents. ✿【Easy to Trim】The thin and flexible nature of our fabric makes it convenient for daily use. it can be easily incorporated into existing products for everyday protection against electromagnetic radiation. Versatile fabric is perfect for crafting smart meter emi shields, wireless router covers, anti-credit card skimming wallets, anti-theft car key fob bags, phone pouches, and laptop protective bags. ✿【Protects the Household】More and more homes are using these ultra-useful shielding Faraday fabrics to protect the family against exposure to undesirable electromagnetic radiation. Disruptive radiation may come from smart meters, laptops, TV screens, mobile phones, power outlets, routers, microwave ovens, nearby cell towers and so much more unsuspecting devices and appliances in or near homes.