Review on OneTwoFit Adjustable Doorway Pull Up Bar, 25.6-33.5 Inches Length Home Gym Exercise Chin Up Bar HK664 by Lyle Stepp

I moved into a new apartment with doors that had very slim frames and my old "over-the-door" mounted pull-up bar was no longer usable.I was very concerned about purchasing what I would call "shower curtain" type pull up bars, but this model is actually a bit different and superior to those older designs.1. The metal and other materials are quite substantial and should be very durable in the long run.2. The bar locks into place by rotating two side pieces with a strong metal screw piece in the center. By having two ends pulling out rather than just one end, the bar is stronger and less likely to bend.3. The inner section is not a simple spring, but actually a screw-rod. Springs can lose tension quite easily, while this inner mechanism is very tough and allows the two side pieces to lock into place by twisting the entire bar, moving both ends either wider or narrower.Overall, while I had originally thought that this bar was going to be a downgrade from my previous over-the-door designs, it's actually more stable and much stronger. As a bonus, you can actually tension it within the door frame and still allow your doors to open and close!An excellent buy! Do not hesitate to purchase!Note: This bar comes with additional supports that you can screw into your door frame. I did not use them and do not believe they are necessary. You can simply prop this bar into position and twist it until it is sturdy; ready for pull ups!