Curved Shower Curtain

I live in a rented apartment where I can not screw into the wall, but I want one of those curved shower curtain rods. How do I set up?

This site sells the curved rods with loads that can be used to fit the opening. I think they are spring or torsion at each end, as do the lines. http://www.signaturehardware.com/

can not be done on the model curve. A fee in the case of chrome pipe is divided into two with an internal spring pushing outward is the only option.

Why not abandon the idea and buy a tension bar?

You can screw into the wall, but you have to patch the holes when you leave.