Metal type: Authentic 24K Solid Yellow Gold Hardness : 1/4-hard Gauge/thickness: 22 Ga Shape : Round, Dimensions : .025" (0.64mm) 3 Inches weighs 0.31 Pennyweight 22 Gauge 99.99% Pure 24K Solid Yellow Gold Wire Round 1/4 Hard 3 Inches by CRAFT WIRE. This is authentic 24K 99.99% Pure Yellow Gold, NOT "Plated Coated or Filled!"