When a profile-of-a-surface tolerance applies all around the profile of a part, the all around symbol is placed on the leader from the feature control frame.

Profile-Of-A-Surface Tolerance

A geometric dimensioning and tolerancing (GD&T) specification that controls the form, orientation, and location of surfaces within a specified tolerance zone.

All Around Symbol

A graphical symbol indicating that a geometric tolerance or feature applies to all surfaces all around the part.

Feature Control Frame

A border or structure in technical drawings that contains symbols and specifications to describe the geometric tolerances for controlling the form, orientation, location, and profile of a feature.