1.Surface Resistance: Surface Electric Resistanc below 0.05Ω, Shielding Performance range from 70 to 90dB, 99.9999% blocking. 2.Size: 39'x44' inch (100x110cm). Each piece is 44' inch wide sold by 39' inch long. If you order more than 1 quantity and need continuous length, please indicate this in Seller Notes or we will send each piece by 39'x44' inch. 3.Wide range of use: This signal shielding fabric can be used for many products. Such as maternity clothes, suits, curtains, blanket, bag, phone case or laptop, mainframe chassis covers, and is widely used to make RFID antitheft wallets, card bags, outdoor waist bags, passport covers and so on. The shielding performance will be the when wrapping the item completely. 4.Safeguard us better: Nowadays, high technology is updating everyday, and hacking technology is becoming more and more developed. If we do not guard our electronic equipment, our private information will be taken away by others without any knowing, Our success will also disappear easily.