is a brassie fly tying wire, non tarnishing and perfect for your heavy nymphs, brassies, copper johns, streamers, sea trout, predator and salmon flies as bodies, ribs or thoraxes. Measuring 0.3mm or 0.012 inch diameter the non tarnishing means it can even be used in saltwater. Wire 0.3mm is part of our large range of wire colors suitable for most fliesSpecifications and Features: Material Length: 10m 10 yds Wire Diameter: 0.3mm 0.012 inch Material Type: Non Tarnishing Copper Wire Product Packaging: Spool Color: March Brown