This Uncoated Round copper wire it's Ideal for jewelry making, creating components, Craft, Wire wrapping, Hobby, forming, shaping and electrical, copper wire keeps The shape. This Wire Could be Soldered, Hammered, Patina, and Oxidize. Bare Solid Round Copper Wire 99.9% Pure, No Lacquer Coating or Plating, (Lead and Nickel Free) (Each temper will feel and handle differently from one metal to another) . CDA 110 copper; 99.9% pure