Round Aluminum Tube
What can I say its tubing---it is straight with a hole in the center. The best thing about it is the way it was shipped. A good solid triangular shipping container. It was protected VERY well, with no bends, dents or any type of damage at all. If it had been in a tube there is a good chance it would have been damaged, as you can smash or bend a tube easier than a triangle. Keep up the good service.