diff --git a/doc/salome/gui/SMESH/input/1d_meshing_hypo.doc b/doc/salome/gui/SMESH/input/1d_meshing_hypo.doc
index 1d6154014..5f96b8fd8 100644
--- a/doc/salome/gui/SMESH/input/1d_meshing_hypo.doc
+++ b/doc/salome/gui/SMESH/input/1d_meshing_hypo.doc
@@ -6,6 +6,7 @@
- \ref arithmetic_1d_anchor "Arithmetic 1D"
- \ref average_length_anchor "Average Length"
+- \ref max_length_anchor "Max Size"
- \ref deflection_1d_anchor "Deflection 1D"
- \ref number_of_segments_anchor "Number of segments"
- \ref start_and_end_length_anchor "Start and end length"
@@ -77,6 +78,19 @@ integer. Default value is 1e-07.
\ref tui_average_length "Defining Average Length" hypothesis
operation.
+
\anchor max_length_anchor
+Max Size
+Max Size hypothesis allows splitting geometrical edges into
+segments not longer than the given length. Definition of this hypothesis
+consists of setting the maximal allowed \b length of segments.
+Use preestimated length check box lets you specify \b length
+automatically calculated basing on size of your geometrical object,
+namely as diagonal of bounding box divided by ten.
+Use preestimated length check box is enabled only if the
+geometrical object has been selected before hypothesis definition.
+
+\image html a-maxsize1d.png
+
\anchor number_of_segments_anchor
Number of segments hypothesis
diff --git a/doc/salome/gui/SMESH/input/about_hypo.doc b/doc/salome/gui/SMESH/input/about_hypo.doc
index f0ae51083..c2023e4cf 100644
--- a/doc/salome/gui/SMESH/input/about_hypo.doc
+++ b/doc/salome/gui/SMESH/input/about_hypo.doc
@@ -18,6 +18,7 @@ them, you operate numerical values):
- \ref arithmetic_1d_anchor "Arithmetic 1D"
- \ref average_length_anchor "Average Length"
+- \ref max_length_anchor "Max Size"
- \ref deflection_1d_anchor "Deflection 1D"
- \ref number_of_segments_anchor "Number of segments"
- \ref start_and_end_length_anchor "Start and end length"
diff --git a/doc/salome/gui/SMESH/input/introduction_to_mesh.doc b/doc/salome/gui/SMESH/input/introduction_to_mesh.doc
index 9a5d7dd69..a2807b251 100644
--- a/doc/salome/gui/SMESH/input/introduction_to_mesh.doc
+++ b/doc/salome/gui/SMESH/input/introduction_to_mesh.doc
@@ -11,6 +11,7 @@ allows to apply 1D, 2D, 3D meshing algorithms and a set of hypotheses:
- \ref arithmetic_1d_anchor "Arithmetic 1D"
- \ref average_length_anchor "Average Length"
+- \ref max_length_anchor "Max Size"
- \ref deflection_1d_anchor "Deflection 1D"
- \ref number_of_segments_anchor "Number of segments"
- \ref start_and_end_length_anchor "Start and end length"