Sterling silver jewelry wire communicates class, value and beauty. Nothing shines quite like the bright, white sheen of quality silver jewelry wire. Our sterling silver wire is a mix of 92.5% silver and 7.5% copper. Copper gives the silver added durability, making sterling silver wire perfect for wire jewelry making. Your wire will have the malleability and beauty of fine silver with the hardness of copper the best of both worlds. - 5FT