# Dup Mesh Hole Boundary

## <img src="https://3375153115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F5uhW8FwQpXQj8tHUULMo%2Fuploads%2FvaeF0UfrEUQz0RJwOV2q%2FDUP_MESH_HOLE_BOUNDARY.png?alt=media&#x26;token=62e58401-f1b2-4eaf-94e1-8fc59575d542" alt="" data-size="line"> Dup Mesh Hole Boundary <a href="#profiles" id="profiles"></a>

The `DupMeshHoleBoundary` command in Rhino duplicates the boundary of a mesh hole by creating a polyline around it. To use it, simply select the boundary of the hole in the mesh. This tool is helpful for creating clear, editable boundaries around mesh holes.&#x20;

![](https://docs.mcneel.com/rhino/8/help/en-us/image/topic_illustrations/dupmeshholeboundary-001.png)
