Features: Double-layer bracket kit for crossmember beam of boat trailer is suitable for assembling hardware fittings of assault boat moving car, providing additional support and stability. It can provide more powerful support for ship trailers. It is suitable for moving vehicles of assault boats and other ships, which is convenient for assembly and provide additional safety guarantees. Well crafted hardware fittings are reliabled, ensuring a long service life. Owners who own assault boats or other small boats and need to move and store them. Shipyards or clubs that like water sports and need to carry ships regularly. The berthing area of yacht docks, docks and other waters is used for safe storage and handling of ships. Provide additional support and stability when the ship is maintained, repaired or stored. Specifications: Component:Alloy Size:As Picture Shown Color:Silver Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings. Package includes: 4 Set Trailer Bunk Brackets