The RAM ROD® Fishing Rod Holder with 2" x 2.5" Base (RAP-340) is a fully adjustable, drill-down rod holder designed for secure, reliable mounting on your vessel. Compatible with both spinning and baitcasting rods, it includes a 360-degree rotating collar that lets anglers quickly lock their rod in place. Built on a C size RAM® ball, it offers extensive adjustability for perfect positioning. This solution comes with a sturdy 2" x 2.5" flat surface mounting base.