1Material: Boat fishing rod holder uses premium stamped grade 316 stainless steel for excellent rust resistance and durability in salt water or marine enviroment. 2Characteristic: Boat fishing rod support is 9in (200mm) long, flange angle is 90 degrees, Uv Pvc lining with cover, flush mount type, more durable. 3Safety Insurance: The flange face and flange edge are polished, so you don't have to worry about the edge accidentally scratching your hand. 4Rubber Insert: Includes a rubber gasket to protect the surface of the fishing rod from scratches or damage, and a rubber insert with a cover to protect the rod butt and keeps out water. 5High Stability: The stopper slot built into the base of the pole holder is used to position the pole butt in place, with high stability and safe and reliable use.