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. Having developed and manufactured our own computerised spooling machinery Wire 0.3mm  is put onto the spool with touching turns in totally level traverse, why is this important? With Wire 0.3mm you will not get a birds nest when tying flies or have wires trapped. Semperfli's spools have a removeable cap to re-trap the wire once you have removed a section to tie your flies.Tie on Wire 0.3mm and tie off with thread. Rather than cutting simply wiggle and it will break saving damage to your scissorsThere are 10m / 10.9 yards (approx ) per spool of Wire 0.3mm