High strength composite fishing rod holder and 6" spline post, a must have for the fishing enthusiast. Designed to mount vertically in your boat, you can rotate the rod holder 360 degrees, while tilting the cradle forward and back for the optimum angle. The combination bulkhead/flat surface mounting base can be installed on a flat surface such as the deck or on a vertical surface. This mounting base features a locking feature which requires the release of a plunger to remove the rod holder.