XM FITNESS Rig Single Column FunctionalXM FITNESS Rig Single Column Functional This is an add on for the XM FITNESS Rig System and is only compatible with the latest XM FITNESS Rig Uprights. This add on is NOT usable as a standalone station, it must be attached to an XM FITNESS Upright. Easy to assemble and does not need to be drilled into the floor. Uprights are sold separately. NOTE: IT'S NOT COMPATIBLE WITH THE XM FITNESS INFINITY RACK OR XM FITNESS OMEGA RACK