A technique in which a first boundary region is added to the ends of phase zero pattern defining polygons and a second boundary region is added to the ends of phase 180 pattern. The pole-shaped base member 10a has a cone-shaped inner space formed therein. The body includes a face which slidably engages a second leaf spring. Two viewers are synchronized to display the same pose to facilitate a phone conversation; synchronization session is initiated by a pattern of sounds transmitted over the phone. The lock body having a locking mechanism.