The RAM-114FMTU consists of a round flush mounting base and a socket
compatible with RAM ROD® and RAM-TUBE™ holders with a spline post.
Designed to accommodate gunwales up to two inches thick, and seat with
no visible hardware, this product is ideally suited to a wide variety
of applications. This mounting base is ideal for kayaks and water craft
with limited mounting space. Includes a rubber cap for sealing from
water when not in use, the included nylon threaded cap seals the bottom.