Not only do our posts look rich and decorative, but they are extruded with a special SnugSlide grooved design that enables your fence rails and boards to slide into the groove. Once your rails are in position, you screw them into place with 3 1/2in. stainless steel screws. This not only makes a much stronger and tighter fence (watch a video demonstrating the strength here), but it also makes the install very forgiving when adjustment to your ground slope is necessary and gives you the option to step your fence. Plus, since it all slides together, it makes the install more fun.