The InLine rail is a steel wall organizer rail that you can arrange however you see fit. Comes in 16" or 32" sections. Install it on the wall behind your bench, closets, inside cabinets, etc to keep things tidy and organized. Any of Inline's die racks, shellholder racks, toolhead racks and primer tube racks will fit the InLine rail system. Comes with required mounting hardware and screwcaps.