Features: 1.Material: Boat fishing rod holder uses premium stamped grade 316 stainless steel for excellent rust resistance and durability in salt water or marine enviroment. 2.Characteristic: Boat fishing rod support is 9in (200mm) long, flange angle is 90 degrees, UV PVC lining with cover, flush mount type, more durable. 3.Safety Insurance: The flange face and flange edge are polished, so you don't have to worry about the edge accidentally scratching your hand. 4.Rubber 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. 5.High 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. Specification: Item Type: Fishing Rod Holder Material: Stamped 316 stainless ?steel, UV PCV liner with cover, includes rubber gasket Length: Approx. 200mm / 7.9in Inner Diameter: Approx. 45mm Outer Diameter: Approx. 50.8mm / 2in Flange Angle: 90 Flange Length: Approx. 115.6mm / 4-1/2in Flange Width: Approx. 89.0mm / 3-1/2in Surface Treatment: Flange face and flange edge polished Mounting: Flush mount, requires one 2in mounting hole and three 12 screws (included) PackageList: 2 x Fishing Rod Holder 6 x Screws Note: Please allow 2cm error due to manual measurement. Thanks for your understanding.