With this emitter you can create filaments like hair, roots, or tentacles from an object’s vertices. These filaments are oriented along the surface’s normals.
...
A click on this button creates the fibres from the selected points. By default, the standard particle type is set to → "Dumb".
Mesh tube
Only when this option is enabled the fibres will be meshed. The filaments will be meshed as tubes and the appropriate adjustments are made with the associated “@ Mesh “Mesh ...” parameters.
...
Mesh width
This is diameter of the meshed fibres in metres. If “@ Mesh” “Mesh” width and “@ Mesh “Mesh width end” are identical the diameter remains constant.
...
Mesh width end
If you do not want conical fibres enter an end value. This value is measured in metres.
...
Mesh section
Here you can control the mesh's roundness. The parameter determines the number of points that will be used to create the hull around the particles.