The Tough-Tube™ Rod Holder with Track Base kit is compatible with the RAM Tough-Track™ to provide an ideal fishing rod holder mounting solution. Attach the rod holder using the included track base and RAM ROD® ratchet attachment. The track base’s tether point secures your rod holder while the adjustable ratchet attachment allows for multiple angles, keeping you in control out on the water. T-Bolt Dimensions: .48" x .95"