Surface Resistance: Below 0.1 ohm , Average Attenuation of 70 dB from 10MHz-18GHz. RF/EMI/EMF/LF Blocking,Super Earthing/Grounding Fabric Anti-static/radiation/radiowave/microwave Shielding Electromagnetic Fabric. Elastic Material Silver coated Nylon Tri-cot Fabric. Highly Electrically Conductive Silver/Nylon Fabric Very Soft and Flexible. Hands Washable in Cold or Warm Water with a Neutral Detergent. No Bleach! Usage for Garments, Drapes, Bedding, Curtains,Tents,etc.Effective Shielding for CellTowers,Microwave Signals,Phones,Smart Meters,Security Systems, Radar, Military Broadcast, etc and More. Making Anti-static Cloth, Wireless Meter Shielding, E-textiles, Shielding Curtain, EMP and EMI Radiation Reduction. High-shielding Conductive Fabric for Blocking RF Signals Such as Cell, Bluetooth, WiFi, GPS. As an Insert in the Wallet or Handbag to Protect Your Credit Cards from Data Theft.