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 # ansys.meshing.prime.SurfaceUtilities

 Last update: 17.07.2025 

#### SurfaceUtilities.stretch\_free\_boundaries(face\_zonelet\_ids, params)

Stretch free boundaries of each zonelet.

- **Parameters:****face\_zonelet\_ids**: Ids of face zonelets.
    
    **params**: Parameters to control stretch free boundaries operation.
- **Returns:**[`StretchFreeBoundariesResults`](ansys.meshing.prime.StretchFreeBoundariesResults.md#ansys.meshing.prime.StretchFreeBoundariesResults): Returns the StretchFreeBoundariesResults.
- **Return type:**[`StretchFreeBoundariesResults`](ansys.meshing.prime.StretchFreeBoundariesResults.md#ansys.meshing.prime.StretchFreeBoundariesResults)

### Examples

```pycon
>>> result = surf_utils.stretch_free_boundaries(face_zonelet_ids, params)

```