The RAM-114DTM5 deck and track flat surface base includes a socket compatible with RAM ROD® and RAM-TUBE™ holders with a spline post. The RAM-114DTMU is designed to attach to Tite-Lok track systems with a 3.25" width. This skew does not come with the knobs needed to tighten this base down. If you do not allready have the necessary knobs it would be best to purchase The RAM-114DTMU instead.