Designed around a new clamp style knuckle, the Preston XS Feeder Arm can be
fitted below the frame of your seat box, or below other accessories. The
two fixing points make this arm extremely stable, whilst still
remaining infinitely adjustable.

The inner tube is D sectioned in profile, to completely eliminate any
rotation on the arm. Complete with a full range of inserts to enable it to
be used on most popular seat boxes.