I just now installed this shower curtain rod. It arrived already assembled and merely needed to be rotated until it lengthened to the proper length for installation. I pulled one of the end caps off to slide the curtain loops onto the rod, then replaced the cap and pressed the rod into place between two tile walls.
This rod feels sturdy and the pads at the ends have a much larger surface area than my previous curtain rod -- which kept slipping and falling down into the bathtub. This looks like a good product.