Our new RailFX FlexFX Fittings are now even more flexible! The new FlexFX design allows one fitting to be used for both level and stair applications, simplifying the ordering and installation process. Plus, our new Universal Drilling Template makes drilling holes and aligning fittings a breeze. FlexFX Fittings are used with our 100′ and 500′ bulk cable boxes and ideal for wood posts.