Designed to "spin" the hook to apply material with the hook shank held in perfect alignment with the axis of rotation, the NORVISE works like a lathe and provides much greater speed, better thread tension control and more precise material placement. Precision ball bearings and heavy brass hubs allow spinning with minimal effort and steady speed. The NORVISE with Thread Post (for resting thread while spinning material), instructional DVD and mounting hardware are included. Made in USA.