Well, I can't really see too well what is going on there, but if it is a single rod, wit two way adjustment, then it is most likely the same as one that LMI used to sell many years ago. It had reverse threads on one end and regular on the other, each threaded through a small steel block, with a hex nut welded onto the end.
Hopefully they have improved the quality, because the LMI ones **SUCKED** The nuts were badly welded and would snap off if tightened too much, and "too much" was not too hard to do. Fine threads on one end and coarse on the other would be much better, like on the Allied Lutherie rods.
I use the Allied rods for my guitars that adjust at the headstock, and they are excellent, but I wish they would use a thicker tubing on the bottom rod so it would fill up the channel and not rattle. Their "solution" is to tell us to glue a filler strip on top, pushing the rod down into the channel. Very annoying. I just wrap little pieces of electrical tape on the bottom rod. It works, but still...
For my guitars that adjust at the heel, I use a one way double rod from ebay seller Bezdez, and put a spoke wheel nut on the end.
I would love to use an american made truss rod, but LMI's rods have always disappointed me, crooked welds and such.
At some point I just may start making my own.
Edit~ Duh.. just saw the second video which I didn't notice before