Copper tape has a wide range of uses, EMC shielding, protection against snails, electrical repairs, decoration, for handicrafts. Protect your devices from radio frequency and electromagnetic interference. The tape is powerful, flexible and highly conductive. Shielding for the back of the guitar pickguards and cavities, limit electrical noise and hum, repair copper traces on circuit boards. It is used for electromagnetic radiation interference, has good shielding effect, and has good performance of electrostatic discharge to the ground,also used for welding. It is mainly used to eliminate electromagnetic interference EMI and insulate the harm of electromagnetic waves to the human body. It is mainly used for computer peripheral wires, computer monitors and formers. Colour:As shown Material:Copper foil Size:20mm x 20m/30mm x 20m/5mm x 20m Package Contents: 1 x copper foil tape Note: Due to different production batches, there may be some differences in products Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.