Technical Data： Surface resistance : below 0.04 ohm 5G Material: waterproof copper+polyester+nickel Type: big plaid pattern Shielding: RF & LF Electromagnetic fields Frequency range: 30MHz to 30GHz Damping (dB): 95-65 dB Color: silver side is very conductive and grey color is waterproof Fabric width: 43" inch (108cm） (Each parcel comes with a piece of size 2x20 inch emi shielding tape to DIY, we also sell the tape separately, it is great tape ! ) REMARK:1 , 2 , 5 and 20 meters option sent by folded package while 50 and 100 meters sent by roll package. Bulk orders will get big discounts. It is great fabric and we have many wholesalers in the world. Highlights: -Durable ( much thicker and more durable than other shielding fabrics ) -Bacteria proof, mildew proof,waterproof -Anti-radiation（RF/EMI/EMF/LF blocking and earthing） -Anti-electrostatic/ESD -Usable in wall render or concrete -Replaces standard reinforcement fabric to save costs -Very easy to cut and sew -This Creates a Conductive Grid That Corresponds to the Idea of a Faraday Cage. -Amradield supplier Usage for Bags, 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. Shipment: Worldwide. If you need swatch samples or check shipping cost or any other questions please feel free to contact us. Remark: Do not cut the inner package and the goods when you open the parcel by knife or scissors. Nickel may produce skin allergies, this material is not intended for direct contact with skin for long time. Test: 1. Wrap your mobile from 4 sides and wait for a while. Then call it by another phone. Singal will become very weak or no singal. 2. Test both readings on detector V/m and uW/cm2 to meet low or high frequency model,sometimes fabric needs grounding to test.