Constructed from one piece of natural wood with no preservatives and have chiselled chambers for weta to live in.
Hinged lid with perspex viewing panel.
The presence or abscence of Weta is the best indicator of the health of your land there is. If you have plenty of wetas - well done, you have controlled your rodents. No wetas - time for some pest control.
But be patient, it may take time for the wetas to move into their new accomodation!