This is a nice sturdy ring stock, or lightweight bracelet stock. The wire is flat on one side and covered in a ribbed or dot border on the other.

Type of Metal - Copper or Brass or Bronze or Nickel Silver,
Grade of Metal - 1st Grade,
Width - 3.5mm x 1.5mm,
Measurement - 1 foot,
(#12) (12g) Rodaja 1