A callout tag is an annotation element that marks the location of a callout in a parent view.
- Use the Family Editor to create a callout head family to define the shape of the callout head and the information that it contains.
- In a project, create a callout tag to specify the callout head family to use and the radius of the corners of the callout bubble.
- To define the line weight, color, and style for the callout bubble and leader line, click Manage tab
Settings panelAdditional Settings drop-down, and select the appropriate tool.
The callout tag consists of the following parts:
Callout bubble. The line drawn around part of the parent view to define the callout area. -
Leader line. A line that connects the callout head to the callout bubble. 
Reference label. For reference callouts only. Text displayed in a callout tag to provide information about the callout. -
Callout head. A symbol that identifies the callout. When you place the callout on a sheet, the callout head displays the corresponding detail number and sheet number by default.