Bead smith Brand Craft Wire Silver Colour Copper Wire Treated To Resist Tarnishing 20 Gauge, 15 Yard Spool The look of real silver wire at a fraction of the price.Great for practising wire wrapping technique, perfect for craft projects.Tarnish Resistant Treatment will help keep your projects looking bright, although it is not 100% non-tarnish.20 Gauge Wire (.80cm .) 15 yard spool (45 feet or approximately 13.5 metres) PLEASE NOTE: PLATINGS AND colour COATINGS ARE PERMANENT, BUT THIS DOES NOT MAKE THEM IMMUNE TO SCRATCHES AND DINGS.FOR LEAST RISK OF DAMAGE TO THE WIRE'S SURFACE, WE RECOMMEND USING NYLON JAW PLIERS WHENEVER POSSIBLE.