The RAM-301-RBSWU consists of the RAM-TUBE™ 2008 fishing rod holder, RAM ROD® Revolution ratchet arm with single open socket and 2.5" diameter round base that contains the universal AMPS hole pattern. Offering the patented RAM rubber ball, socket and ratcheting feature, you can rotate the rod holder 360 degrees, while tilting the cradle forward and back for the optimum angle. The RAM-TUBE™ 2008 tube holder integrates the patented rubber ball and socket design with a self draining and quick to access tube for the butt of most any fishing rod. The tube is made of extremely durable composite. Ideally suited for anything from Kayaks to Tournament boats, this compact and simply design is ready for your next day on the water.