The SMHAEN bobbin is the only super functional, micro
adjustable-tension fly tying bobbin in the world today. Whether you´re a
beginner or a professional fly tyer the bobbin delivers maximum thread
control, thanks to a unique patented tension system, placed so you are
able to adjust tension with only one finger, while still working on your
Thanks to the perfectly designed ergonomic frame shape, you don’t
even feel the internal tension system in your hand, A ceramic tube, and
the well balanced bobbin holder, gives you perfect thread control.