Flexi-Overdenture Attachment Introductory Titanium - KitKit contains; 12 overdenture posts(6 of 2 sizes),12 nylon attachment caps,2 primary reamers, 2 secondary drills(use for indirect coping),2 ovd countersink drills (use for direct noncoping),1 wrench,1 depth gauge,12 brass transder studs. Based upon a patented split shank post, the ball and socket attachment delivers all the benefits of the Flexi Post for highest retention of full and partial dentures. The attachment can be placed without lab assistance