good quality and price. make . pay attention to the butt welds, they seem very weak
Grado 
Sašo K 23/06/2023
Good but not perfect
A nice and ok truss rod, the hex head on two that I have is welded on at just a little bit of an angle, it won't render it useless, but maybe 0.5mm more room is needed for it to work ok. Just my experience with the two that I got, don't know how they are in general, maybe I got the two pieces that were made in a hurry.