Feature:1. Aluminum Alloy Construction: Seat bracket is crafted from high hardness aluminum alloy, ensuring strength and durability. The surface is treated with anti oxidation, and is highly resistant to damage in harsh marine environments.2. Adjustable Height: The seat bracket can be easily adjusted to any desired height between 335mm to 390mm using the rear knob. It offers infinite height adjustment with a minimum of 335mm and a maximum of 390mm, allowing for personalized comfort.3. High Performance: Seat mounting plate measuring 270x400mm, the bracket can accommodate larger seats. It is also equipped with heavy duty shock absorbers, enhancing the cushioning and shock absorbing performance of the seat.4. Long Durability: The bracket is assembled using 1420mm thick heavy duty aluminum plates and coated with a black piano paint finish. This ensures the bracket's longevity, allowing it to withstand the test of time.5. Versatile Application: Base is an ideal choice for floating docks, lounges, workspaces, or decks. It can be used in various settings, including RVs, camping vehicles, houseboats, yacht pontoons, indoor balconies, and more.Specification:Item Type: Boat Seat Support BracketMaterial: Aluminum Alloy, rust resistant surface treatmentAdjustable Height Range: Any height between 335390mm, minimum: approx. 335mm/13.18in, maximum: approx. 390mm/15.35in (manual lift infinitely adjustable))Features: Equipped with heavy duty shock absorbers to increase the cushioning performance of the seat.Application: The universal product can be used in any position where a seat needs to be installed, such as the driving position of a yacht pontoon, a RV rest area, or a reception roomPackage List:1 xBoat Seat Support BracketNote:1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.