Details: This is sold in lots of 5 Feet of Yellow Gold Filled Wire; hard temper; Gold fill is layers of 14kt gold and base metal combined with heat and pressure. It is not plated; It is 1/20th 14kt Gold; Great forwrapping, twisting, jewelry-making, pearls, etc. The hard temper gives makes the wire a little springy. Hard wire holds the shape well. It does not change color.