In this process, smaller individual wires are twisted or braided together to produce larger wires that are more flexible than solid wires of similar size.
The border includes symbolic "doorways" using utility poles to hold upright supports for wires serving as the lintels, or overhead portion, of the doorframe shape.
This meant that the longitudinal tension of the snare wires could be adjusted independently of the vertical force holding the snares against the bottom head.