This is one of Dave Whitlock's famous bass flies. It's great in a variety of colors, but my favorite is black. This fly is unweighted, and the overall length is about 5 inches.
Hook: Size 4
Thread: 3/0, black
Weed guard: Monofilament
Tail/Body: Black rabbit strip
Eyes: Plastic stick on or painted
The tail and body are all one continuous piece of rabbit strip. A slit is cut in the strip where the hook point can come through, and the rabbit is then secured. The original recipe calls for large plastic eyes, but I've come to paint mine on most of the time.
A fishing note: before using this fly, drench it very well in the water so that it will sink. If this is not done, it will take an unreasonable amount of time for the fly to start sinking by just casting and retrieving it. Once wet, it will sink slowly and wiggle seductively with every strip of the line.
I love it.