Finials for hollow rods (1" & 1⅝" diameters) are designed to slide into the rod end and are held in place by a set screw on the back of the rod. We also offer modification and customization of any of our finials. We can fabricate any of our finials to fit wood poles or other hardware. We can modify COM finials to fit your rods. We can also create or customize a finial to your specifications.