Well, I tied these and then noticed I forgot the copper wire ribbing. There sets the spool of fine copper wire and not one piece or ribbing used. It will work. Hardest part (and not hard) is pairing two hackle tips of the same size and tying them in. The tips should not extend back beyond the abdomen; even shorter perhaps. I dubbed this body and it is a little ragged. The missing ribbing would have helped bind down some of the errant fibers. (Timberline Emerger Pattern). I presented this once before with the ribbing (see 7/19/09). Tie it in tan or gray (original). I use chickaboo feathers instead of marabou fibers.