Feature 1Adopts rail installation, adjustable design, the upper ratchet wheel can adjust the angle of 360 degrees. 2Accuracycast 316 marine grade stainless steel has the greatest corrosion resistance and durability in salt water environments. 3The surface is polished and has a beautiful mirror-like appearance, and it is not easy to rust. 4Accept all 1in standard antenna threads. Suitable for pipes/rails with diameters of 7/8in to 1in. 5Professional manufacturing, superb craftsmanship and high accuracy help to provide the best performance.Item Type: Marine Antenna MountMaterial: 316 Stainless SteelColor: SilverApplicable Stardard Antenna Thread: Approx. 1in/25mmApplicable Diameter of Pipe/Railing: Approx. 22-25mm/0.8-1in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Marine Antenna Mount