Cords

and the cords of it for all the service thereof.  Numbers 3:26c KJV.


You don't need to be an expert on tabernacle construction.  You just need to be hungry.  It's all here in the inspired Word of God.
The first glimpse is found in Exodus 35.
The pins of the tabernacle, and the pins of the court, and their cords, Exodus 35:18.