Feature: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 HolderMaterial: Stamped 316 stainless steel, UV PCV liner with cover, includes rubber gasketLength: Approx. 200mm / 7.9inInner Diameter: Approx. 45mmOuter Diameter: Approx. 50.8mm / 2inFlange Angle: 90Flange Length: Approx. 115.6mm / 4-1/2inFlange Width: Approx. 89.0mm / 3-1/2inSurface Treatment: Flange face and flange edge polishedMounting: Flush mount, requires one 2in mounting hole and three 12 screws (included).Package List:2 x Fishing Rod Holder6 x ScrewsNote:Please allow 2cm error due to manual measurement. Thanks for your understanding.