Shower Curtain Rods L Shaped What Can I Put On My Shower Curtain Rod To Make My Rings Slide Smoother?

What can I put on my Shower Curtain rod to make my rings slide smoother? - shower curtain rods l shaped

My shower curtain rings are not very well on my shower curtain rod slide. In addition to a bar again, there's nothing I do to make it easier to share, to my rings?