The UTC Ultra Wire SM is a wire for building Copper John Nymphs, rib on czech nymphs, emergers, fully dressed salmon flies and a lot more. Wire in general is good to have available for a variety of patterns: I would keep a gold and a silver if I could only have two colors. I have tied up on a couple of different size hooks to show how it compares to the thickness of the hook.
Mustad 94840 #18
Dai-Riki 135 #16
Wrapping two different colors makes a good segmented body for small nymphs
TMC 100 #22
Partridge Klinkhamer X-treme #14
