Solid 925 sterling silver round wires; diameter of r this wire is 20 gauge; professional beading wire intended for making a top quality piece of jewelry. soft temper wire is good for wire wrapping, twisting and looping. Commonly used by jewelers and crafters for creating a high quality piece of jewelry , designing necklaces, bracelets or earrings. It does not matter if you be considered a jewelry expert, a newcomer or perhaps a pupil, you'll use this particular wire and such as the high-quality this produces your personal style and design.Manufactured in the United States.