This rod holder eliminates fishing pole damage and rattling while underway. Commonly mounted in gunwale rod boxes, the round shape covers the hole and provides room for rod tips & guides to slide through. The one piece construction makes it easy to install, and the pliable radial grips flex to fit any size rod without damaging guides. Molded in U.V. stabilized vinyl. Can be mounted over up to a 3" hole, the pie-shaped grips hold your rod securely in the center. Also handy for use in passing wires and hoses through bulkheads. Mounts with 6 - #10 flat head screws (not included). The 6 mounting screws and 3-ring flange make this rod holder distinctive.