In the synchronous environment, you can use the Select tool to construct extruded features. When you select a valid sketch element, such as a sketch region, both the Extrude command bar (A) and the extrude handle (B) appear.

The command bar contains the options required to construct a wide variety of extruded features. To start the feature construction process, you position the cursor over the arrow on the extrude handle and click (A).

The cursor shape changes to a cross hair, and a dynamic representation of the feature is displayed, along with a dynamic input box, which allows you to type a precision value for the feature (B).

To finish defining the feature (C), you can click the mouse, or type a value and press the Enter key.