Like Skynrd says, I know a lil..
the dowels are used in conjunction with a flash material , like say flashabout or krystal flash,then wound around the dowel,take the dubbing loop thread coat with wax,then place some dubbing for the body of the pattern on the snap tool,place the dowel already wrapped with flash material on the top of the dubbing on the snap tool,take a scissors edge or a extacto knive following the length of the dowel and walla the flash more or less gets cut to the same length across the dubbing you laid out ,then take a hackle or wire pull dubbing an flash into the snap tool take the longer clear clip an grasp what sticks out the snal tool the release the snap tool walla, you are ready to cut the stem off the hackle an then place in dubbing loop,this is all explianed in the included video. different diameter dowels = longer flash elements.
Tight Wraps & Tight Lines
Rick Wallace
BTW this tool isnt like a bull dog clip at all,similar yes but different, to each his own, i like building my own tools too an savin a buck, but this tool has its own merits.