The RAM ROD® Fishing Rod Holder with Flush Mounting Base (RAM-114-FU) provides a clean, permanent mounting solution for fishing rods on boats and marine vessels. Designed for flush installation, it requires a 1.4" diameter hole for the spline post base and is secured by drilling down the four corners for maximum stability. The RAM ROD® holder features a spline post that slides into the center socket, allowing for adjustability while maintaining a firm hold. When the rod holder is removed, an integrated rubber cap seals the socket to prevent water pooling and keep your deck clean and dry. Compatible with both spinning and baitcasting rods, it includes a 360-degree rotating collar that lets anglers quickly lock their rod in place.