Length: 100 Feet Type: Bus Bar Wire Diameter: 0.0080" Used for uninsulated grounding and electrical applications Soft tempered Bare copper wire is a single strand wire with no coating. It is used in a variety of uninsulated applications including electrical hook-ups, jumpers, and grounds. It can also be used to make jewelry. This wire meets the ASTM B3 standards for annealed copper and complies with the RoHS and RoHS 2 directives.