The RAM-301-RBNBU consists of the RAM-TUBE™ 2000 fishing rod holder and RAM ROD® Revolution ratchet arm with single open socket for 1.5" ball bases. 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 tube holder integrates the RAM patented rubber ball and socket design with a self draining and quick to access tube for the butt of most any fishing rod. Ideally suited for anything from Kayaks to Tournament boats, this compact and simply design is ready for your next day on the water.