I wish I had more bay windows because these are amazing curtain rods.  I had two bay windows in my house and they each have slightly different angles.  These were perfect for both.  One of the bay windows is odd and has drywall cutting half way into the wooden frame which left no space to hang any rods.  We adhered to rod ends to the ceiling and the connectors to the spaces in between the window.  It loos and works terrifically.  On the normal bay windows the curtain rod fit perfectly.  The curtains come around the windows to ensure that no light streams through the side when the curtains are drawn.  The rods are so easy to hang and very sturdy.