Metal type: Authentic 24K Solid Yellow Gold Hardness : 1/4-hard Gauge/thickness: 24 Ga Shape : Round, Dimensions : .020" (0.51mm) 1 Foot weighs 0.78 Pennyweight 24 Gauge 99.99% Pure 24K Solid Yellow Gold Wire Round 1/4 Hard 1 Foot by CRAFT WIRE is ideal for wire work such as weaving, knitting, cloisonne, filigree, champleve and more. This is authentic 24K 99.99% Pure Yellow Gold, NOT "Plated Coated or Filled!"