No instructions supplied, which is fine - it's pretty easy to figure out.
The rivets were not the right size for the holes in the rails so I had to redrill. The rivets themselves were very hard to install using the rivet gun that I purchased from thomann in the same order. I don't know if this was the rivet or the gun, but it was pretty hard going!
I was using this kit for a potentially different rack series, so had to cut away some of the extrudate to get it flush (because of other rivets in my existing rack) but it seems to have worked well and is fit for my use.
Lots of bolts, nuts and washers came with the pack, which is welcome.
Knocked off the star for the total because of the need to redrill, but quality is as expected.