10 pcs/pack.
* Increases efficiency in closing anterior open bites and correcting excessive overbites
* Employs curve of spee to eliminate the need for step downs, step ups and other varieties of activating loops to
correct overbites
* Leveling by extrusion (relative intrusion) can now be accomplished by one continuous reverse vector
* Minimizes molar rotation
* Controls incisor torque
* Permanent midline etchmarks: three lines for maxillary, one line for mandibular arch
