Made from type 316L stainless steel wire, which is a specially tempered wire with a different feel from other half-hard materials such as gold-filled and sterling silver. Plus it's stronger than those two metals. Ideal for all types of wire-wrapping, for weight-bearing designs, and for holding designs together. It's also an ideal material for instruction and for practice. This type of stainless steel has the look of vintage platinum. The look and durability of 316L stainless steel is a big draw for experienced wire artists. Beadalon Stainless Steel Wire is available in 6 diameters. Made in USA by Beadalon.