before I bought this rod in, I googled for a while. Buyer I have made sure that the rod is straight and does not have to be screwed together, because there probably the earliest the first rattling noises. The rod comes as bulky goods in a package, it should be set. Best for me, my Phsiopraxis also has this bar and so I can speak with my therapist gets to practice the same. The finds this even better than the original because of this already tearing the fiberglass strands, which is very dangerous. The Palkat and DVD support very well at the beginning. I am fully satisfied and would recommend this bar at all times!