I am selling these items to clear out unwanted belongings. ^ ^ While I may not know all the details about the products, I will answer your questions to the best of my ability, so please feel free to ask! If you have any concerns, I can add more photos, so please comment if you'd like me to. ● This conductive tape is mainly used to shield electromagnetic signals and radio waves. It is widely used in laptops, mobile phones, LCD monitors, cables, ESD grounding, air conditioners, refrigerator pipe connectors, and more. Material: Polyester fiber Color: Silver Gray Size: 0.1 mm x 20 mm x 25 m (T*W*L) Package Contents: 1 x Faraday Fabric Tape ● When the conductive tape encounters electromagnetic signals or radio waves, it reflects, absorbs, or transmits them depending on the properties of the object, thus providing a shielding effect. It is conductive on both sides and provides electrical contact to the surface or components without soldering. It has high shielding performance, conductivity, anti-interference, anti-static, flexibility, and abrasion resistance. ● Clean the surface of the item you want to apply the tape to before applying the tape. ＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊uxcell Faraday Fabric Tape 20 mm x 25 M Single Sided Conductive Cloth Fabric Adhesive Tape Roll for Laptop Cable EMI Shielding 0862 31-4