"Full-Hard" wire holds its shape for wire-wrapping jewelry. Its tempered nature holds intricate designs well. In reference to wire gauge size numbers, the larger the number, the smaller the diameter of the wire. Example: 24 gauge wire is smaller in diameter than 18 gauge wire.
Wire-Wrapping Wire>Gold-Filled>Gold ColoredWire-Wrapping WireGold-FilledGold Colored20 GaFull HardSquarehttp://www.firemountaingems.com/itemdetails/h201247wrH201247WRWire, 12Kt gold-filled, full-hard, square, 20 gauge. Sold per pkg of 5 feet.//image1.fmgstatic.com/images/p1247wrb.jpg20.3920.39As Low As $3.49 per foot