Surface Resistance - This Copper fabric surface resistance below 0.03ohmb. Size - Length 78" (2M), width 43" (1.08M), thickness 0.085mm. Operating temperature -4 ℃ ~ 85 ℃ (Package includes a piece of pure copper tape for DIY) Material - Copper, plain type , golden color, This Creates a Conductive Grid That Corresponds to the Idea of a Faraday Cage. Application -protection fabric can make protection for Bags, clothing, windows, mobile phone bags, computer host cover, touch screen gloves, shielding tents, etc. High-shielding Conductive Fabric Important Notice - The Faraday copper fabric sold in precut lengths, which means no matter how many pieces you ordered, it will cut separately into pieces, For example, if you order 3pcs, you will get 3 pieces copper fabric by 78"x43"inch.(Please kindly check the size before place an order) Pure copper cloth