p>Specification: - Material: Copper and Polyester - Size: 39” x 42” - Color: Gold - Shielding effectiveness db 70-90db - Operating temperature ℃ -4 ℃ ~ 85 ℃ - Surface resistance below 0.05ohm. - Copper fabric can make radiation protection clothing, windows, mobile phone bags, computer host cover, touch screen gloves, shielding tents and so on. Property: (1) The shielding frequency band is: 10kHz-30GHz (2) Good conductivity and shielding effect (3) Good thermal conductivity (4) Good ductility (5) Good anti-friction performanceWarm Tips:If you encounter any problems with our anti-radiation fabric, please contact us by email freely and we will deal with your issue quickly