This fletcher is made of durable, glass filled, nylon with a magnetic clip.  It has an adjustable clamp angle for any offset/helical.  The fletcher has the ability to fletch 4X90 degrees and 3X120 degrees as well as cock fletch out or down.  The nock receiver works for all clamps/arrow sizes.  An adapter is included for crossbow bolts.  Available in left helical clamp only at this time.  This is a nice economical fletcher.