Lee's 30 Degree Stainless Steel Swivel Base Flush Mount Rod Holder 2.25" OD X 10.5" Tube [RH575]Swivel Base Rod Holders RH575 Standard Angle 30 Stainless Steel Flush Mount w Swivel Base Without a doubt, our swivel base rod holder is the Ultimate Rod Holder for the serious sportsman. Primarily designed to be used with bent butt tackle, the rod holders unique swivel base allows the rod butt to rotate in the rod holder when side pressure is applied to the tip of the rod. This is an indispensable tool, especially important in Giant Blue Fin Tuna