--- /dev/null
+.. _free_faces_page:
+
+**********
+Free faces
+**********
+
+This mesh quality control highlights the faces connected to less than two mesh volume elements. The free faces are shown with a color different from the color of shared faces.
+
+.. image:: ../images/free_faces.png
+ :align: center
+
+In this picture some volume mesh elements have been removed, as a result some faces became connected only to one volume. i.e. became free.
+
+**See also:** A sample TUI Script of a :ref:`tui_free_faces` filter.
