Here is a roll of Techni-Pro Conductive Copper Foil Electrical Tape, 1/2″ wide x 36 Yds long (108 ft). What you see is what you get.
Item Tag: Copper Foil Tape
Prevent radiating and interfering, making it an ideal guitar shielding tape option. Perfect for any guitar builder/ luthier. l with low resistance, has dual conductivity so current will flow through both sides and the adhesive.
