With this "accessory, also purchased separately, your Octable can also be used on a boat to provide additional cup holders or for you fishermen, use cups to keep your bait, pliers or extra hooks in for easy access. All the same parts that come with the table you previously purchased easily adapt to the rod holder swivel. The 60 degree angle of the PVC post slides in your rod holder, wedges in and locks behind the pin in the bottom of rod holder. Remove the male adapter and cap from PVC post first, then apply the rod holder adapter and replace the male adapter and cap.
The adapter easily adjusts to any angle rod holder you have, 15 degree, 30 degree.